Annotation of embedaddon/quagga/NEWS, revision 1.1.1.3

1.1.1.2   misho       1: Note: this file lists major user-visible changes only.
                      2: 
1.1.1.3 ! misho       3: * Changes in Quagga 0.99.22
        !             4: 
        !             5: - [bgpd] The semantics of default-originate route-map have changed.
        !             6:   The route-map is now used to advertise the default route conditionally.
        !             7:   The old behaviour which allowed to set attributes on the originated
        !             8:   default route is no longer supported.
        !             9: - [bgpd] There is now a replace-as option to neighbor ... local-as ...
        !            10:   no-prepend.  For details, refer to the user documentation.
        !            11: - [zebra] An FPM interface has been added.  This provides an alternate
        !            12:   interface to routing information and is geared at OpenFlow & co.
        !            13: - [snmp] AgentX is now supported;  the old smux backend is considered
        !            14:   deprecated.  ospf6d has also had OSPFV3-MIB added.
        !            15: - [*] several issues with configuration save/load/apply have been fixed,
        !            16:   in particular on ospf "max-metric router-lsa administrative" and
        !            17:   "distribute-list", bgpd "no neighbor activate", isisd "metric-style",
        !            18: - [*] a lot of bugs have been fixed, please refer to the git log
        !            19: 
1.1.1.2   misho      20: * Changes in Quagga 0.99.21
                     21: 
                     22: - [bgpd] BGP multipath support has been merged
                     23: - [bgpd] SAFI (Multicast topology) support has been extended to propagate
                     24:   the topology to zebra.
                     25: - [bgpd] AS path limit functionality has been removed
                     26: - [babeld] a new routing daemon implementing the BABEL ad-hoc mesh routing
                     27:   protocol has been merged.
                     28: - [isisd] a major overhaul has been picked up. Please note that isisd is
                     29:   STILL NOT SUITABLE FOR PRODUCTION USE.
                     30: - [*] a lot of bugs have been fixed, please refer to the git log
                     31: 
1.1       misho      32: * Changes in Quagga 0.99.10
                     33: 
                     34: - [bgpd] 4-byte AS support added
                     35: - [bgpd] MRT format changes to version 2. Those relying on
                     36:   bgpd MRT table dumps may need to update their tools.
                     37: - [bgpd] Added new route-map set statement: "as-path exclude"
                     38: - Zebra RIB updates queue has evolved into a multi-level
                     39:   structure to address RIB consistency issues.
                     40: 
                     41: * Changes in Quagga 0.99.2
                     42: 
                     43: - [bgpd] Work queues added to bgpd to split up update processing,
                     44:   particularly beneficial when a peer session goes down. AS_PATH
                     45:   parsing rewritten to be clearer, more robust and ready for 4-byte.
                     46: 
                     47: - [ripd] Simple authentication is no longer the default authentication
                     48:   mode for ripd. The default is now no-authentication. Any setups which
                     49:   used simple authentication will probably need to update their
                     50:   configuration manually.
                     51: 
                     52: - [ospfd] 1s dead-interval with sub-second Hellos feature added.
                     53:   SPF timers now specified in milliseconds, and with adaptive
                     54:   hold-time support. RFC3137 Stub-router support added. Default ABR
                     55:   type is now 'cisco'.
                     56: 
                     57: - Solaris least privileges support added.
                     58: 
                     59: * Changes in Quagga 0.99.1
                     60: 
                     61: - Zserv is now buffered via threads and non-blocking in most cases for both
                     62:   clients and zebra, which should improve responsiveness of daemons when
                     63:   they must send many messages to zebra.
                     64: 
                     65: - 'show thread cpu' now displays both cpu+system and wall-clock time,
                     66:   where getrusage() is available.
                     67: 
                     68: - Background threads added and workqueue API added, with a
                     69:   'show work-queues' command. Thread scheduling improved slightly.
                     70: 
                     71: - Zebra now has a work-queue for RIB processing. See 'show work-queues' in
                     72:   the zebra daemon vty.
                     73: 
                     74: - Support for interface renaming on Linux netlink systems.
                     75: 
                     76: - GNU Zebra bgpd merges, including BGP Graceful-restart and "match ip
                     77:   route-source" command.
                     78: 
                     79: - Automatic logging of backtraces should daemons crash to assist in
                     80:   diagnosis. See the documentation for more information on configuring
                     81:   logging correctly, and set --enable-gcc-rdynamic if compiling with gcc.
                     82: 
                     83: * Changes in Quagga 0.98.0
                     84: 
                     85: - Logging facilities upgraded.  One can now specify a severity level
                     86:   for each logging destination.  And a new "show logging" command gives
                     87:   thorough information on the current logging system configuration.
                     88: 
                     89: - Watchquagga daemon added.  This is not well tested yet.  Please try
                     90:   monitor mode first before enabling restart features.  It is important
                     91:   to make sure that the various timers are configured with appropriate
                     92:   values for your site.
                     93: 
                     94: - BGP route-server support added. See the texinfo documentation.
                     95: 
                     96: - OSPF API initialisation is disabled by default even if compiled in. You
                     97:   can enable it with -a/--apiserver command line switch.
                     98: 
                     99: - "write-config integrated" vtysh command replaced with "service
                    100:   integrated-vtysh-config" command.
                    101: 
                    102: - Router id is now handled by zebra daemon and all daemons receive changes
                    103:   from it. Router id can be overriden in daemons' configurations of course.
                    104:   To fix common router id in zebra daemon you can either install non-127
                    105:   address on loopback or use "router-id x.x.x.x" command.
                    106: 
                    107: - "secondary" keyword is removed from ip address configuration. All
                    108:   supported OS'es have their own vision what's secondary address and
                    109:   how to handle it.
                    110: 
                    111: - Zebra no longer enables forwarding by default. If you rely on zebra to
                    112:   enable forwarding make sure to add '<ip|ip6> forwarding' statements
                    113:   to your zebra configuration file.
                    114: 
                    115: - All libraries are built and used shared, on platforms where libtool
                    116:   supports shared libraries.
                    117: 
                    118: - Router advertisement syntax is changed. In usual cases (if you didn't do
                    119:   any fancy stuff) it's enough to change lines in configuration from:
                    120:   "ipv6 nd prefix-advertisement X:X:X:X::/X 2592000 604800 autoconfig on-link"
                    121:   to:
                    122:   "ipv6 nd prefix X:X:X:X::/X"
                    123: 
                    124:   All router advertisement options are documented in texi documentation.
                    125: 
                    126: - --enable-nssa configure switch is removed. NSSA support is stable enough.
                    127: 
                    128: - Daemons don't look at current directory for config file any more.
                    129: 
                    130: * Changes in Quagga 0.96.5
                    131: 
                    132: - include files are installed in $(prefix)/include/quagga.  Programs
                    133:   building against these includes should -I$(prefix)/include and e.g.
                    134:   #include <quagga/routemap.h>
                    135: 
                    136: - New option --enable-exampledir puts example files in a separate
                    137:   directory from $(sysconfdir), easing NetBSD pkgsrc hierarchy rules
                    138:   compliance.
                    139: 
                    140: - New configure options --enable-configfile-mask and
                    141:   --enable-logfile-mask to set umask values for config and log
                    142:   values.  Masks default to 0600, matching previous behavior.
                    143: 
                    144: - Import current CVS isisd from SourceForge, then merge it with
                    145:   the Quagga's Framework.
                    146: 
                    147: * Changes in Quagga 0.96.4
                    148: 
                    149: - Further fixes to ospfd, some relating to the PtP revert. Interface
                    150: lookups should be a lot more robust now. 
                    151: 
                    152: - Fix for a remote triggerable crash in vty layer.
                    153: 
                    154: - Improvements to ripd, and addition of split horizon support.
                    155: 
                    156: - Improved bgpd table support, now dumps at time of day intervals rather
                    157: than time from startup intervals. Much improved support for IPv6 table
                    158: dumps. show commands for views improved.
                    159: 
                    160: * Changes in Quagga 0.96.3
                    161: 
                    162: - revert the 'generic PtP' patch. Means Quagga will no longer work with
                    163: FreeSWAN, however, on the plus side this gets rid of a lot of niggly bugs
                    164: which the PtP patch introduced.
                    165: 
                    166: * Changes in Quagga 0.96.2
                    167: 
                    168: - Fix crash in ospfd
                    169: 
                    170: * Changes in Quagga 0.96.1
                    171: 
                    172: - Iron out problem with the privileges definitions
                    173: 
                    174: * Changes in Quagga 0.96
                    175: 
                    176: - Privilege support, daemons now run with the minimal privileges needed, see
                    177:   the documentation for details.
                    178:   
                    179: - NSSA ABR support in ospfd.
                    180: 
                    181: - OSPF-API support merged in.
                    182: 
                    183: - 6WIND patch merged in.
                    184: 
                    185: * Changes in zebra-0.93
                    186: 
                    187: * Changes in bgpd
                    188: 
                    189: ** Configuration is changed to new format.
                    190: 
                    191: * Changes in ospfd
                    192: 
                    193: ** Crush bugs which reported on Zebra ML is fixed.
                    194: 
                    195: ** Opaque LSA and TE LSA support is added by KDD R&D Laboratories,
                    196:    Inc.
                    197: 
                    198: * Chages in ospf6d
                    199: 
                    200: ** Many bugs are fixed.
                    201: 
                    202: * Changes in zebra-0.92a
                    203: 
                    204: * Changes in bgpd
                    205: 
                    206: ** Fix "^$" community list bug.
                    207: 
                    208: ** Below command's Address Family specific configurations are added
                    209: 
                    210:   nexthop-self
                    211:   route-reflector-client
                    212:   route-server-client
                    213:   soft-reconfiguration inbound
                    214: 
                    215: * Changes in zebra
                    216: 
                    217: ** Treat kernel type routes as EGP routes.
                    218: 
                    219: * Changes in zebra-0.92
                    220: 
                    221: ** Overall security is improved.  Default umask is 0077.
                    222: 
                    223: * Changes in ripd
                    224: 
                    225: ** If output interface is in simple password authentication mode,
                    226: substruct one from rtemax.
                    227: 
                    228: * Changes in bgpd
                    229: 
                    230: ** IPv4 multicast and IPv6 unicast configuration is changed to so
                    231: called new config.  All of AFI and SAFI specific configuration is
                    232: moved to "address-family" node.  When you have many IPv6 only
                    233: configuration, you will see many "no neighbor X:X::X:X activate" line
                    234: in your configuration to disable IPv4 unicast NLRI exchange.  In that
                    235: case please use "no bgp default ipv4-unicast" command to suppress the
                    236: output.  Until zebra-0.93, old config is still left for compatibility.
                    237: 
                    238: Old config
                    239: ==========
                    240: router bgp 7675
                    241:  bgp router-id 10.0.0.1
                    242:  redistribute connected
                    243:  network 192.168.0.0/24
                    244:  neighbor 10.0.0.2 remote-as 7675
                    245:  ipv6 bgp network 3ffe:506::/33
                    246:  ipv6 bgp network 3ffe:1800:e800::/40
                    247:  ipv6 bgp aggregate-address 3ffe:506::/32
                    248:  ipv6 bgp redistribute connected
                    249:  ipv6 bgp neighbor 3ffe:506:1000::2 remote-as 1
                    250: 
                    251: New config
                    252: ==========
                    253: router bgp 7675
                    254:  bgp router-id 10.0.0.1
                    255:  network 192.168.0.0/24
                    256:  redistribute connected
                    257:  neighbor 10.0.0.2 remote-as 7675
                    258:  neighbor 3ffe:506:1000::2 remote-as 1
                    259:  no neighbor 3ffe:506:1000::2 activate
                    260: !
                    261:  address-family ipv6
                    262:   network 3ffe:506::/33
                    263:   network 3ffe:1800:e800::/40
                    264:   aggregate-address 3ffe:506::/32
                    265:   redistribute connected
                    266:   neighbor 3ffe:506:1000::2 activate
                    267:  exit-address-family
                    268: 
                    269: * Changes in ospfd
                    270: 
                    271: ** Internal interface treatment is changed.  Now ospfd can handle
                    272: multiple IP address for an interface.
                    273: 
                    274: ** Redistribution of loopback interface's address works fine.
                    275: 
                    276: * Changes in zebra-0.91
                    277: 
                    278: ** --enable-oldrib configure option is removed.
                    279: 
                    280: ** HAVE_IF_PSEUDO part is removed.  Same feature is now supported by
                    281: default.
                    282: 
                    283: * Changes in ripd
                    284: 
                    285: ** When redistributed route is withdrawn, perform poisoned reverse.
                    286: 
                    287: * Changes in zebra
                    288: 
                    289: ** When interface's address is removed, kernel route pointing out to
                    290: the address is removed.
                    291: 
                    292: ** IPv6 RIB is now based upon new RIB code.
                    293: 
                    294: ** zebra can handle same connected route to one interface.
                    295: 
                    296: ** New command for interface address.  Currently this commands are
                    297: only supported on GNU/Linux with netlink interface.
                    298: 
                    299: "ip address A.B.C.D secondary"
                    300: "ip address A.B.C.D label LABEL"
                    301: 
                    302: * Changes in bgpd
                    303: 
                    304: ** BGP flap dampening bugs are fixed.
                    305: 
                    306: ** BGP non-blocking TCP connection bug is fixed.
                    307: 
                    308: ** "show ip bgp summary" shows AS path and community entry number.
                    309: 
                    310: ** New commands have been added.
                    311:   "show ip bgp cidr-only"
                    312:   "show ip bgp ipv4 (unicast|multicast) cidr-only"
                    313:   "show ip bgp A.B.C.D/M longer-prefixes"
                    314:   "show ip bgp ipv4 (unicast|multicast) A.B.C.D/M longer-prefixes"
                    315:   "show ipv6 bgp X:X::X:X/M longer-prefixes"
                    316:   "show ipv6 mbgp X:X::X:X/M longer-prefixes"
                    317: 
                    318: ** IPv6 IBGP nexthop change is monitored.
                    319: 
                    320: ** Unknown transitive attribute is passed with partial flag bit on.
                    321: 
                    322: * Changes in ospfd
                    323: 
                    324: ** Fix bug of LSA MaxAge flood.
                    325: 
                    326: ** Fix bug of NSSA codes.
                    327: 
                    328: * Changes in zebra-0.90
                    329: 
                    330: ** From this beta release, --enable-unixdomain and --enable-newrib
                    331: becomes default.  So both options are removed from configure.in.  To
                    332: revert old behavior please specify below option.
                    333: 
                    334: --enable-tcp-zebra # TCP/IP socket is used for protocol daemon and zebra.
                    335: --enable-oldrib    # Turn on old RIB implementation.
                    336: 
                    337: Old RIB implementation will be removed in zebra-0.91.
                    338: 
                    339: ** From this beta release --enable-multipath is supported.  This
                    340: option is only effective on GNU/Linux kernel with
                    341: CONFIG_IP_ADVANCED_ROUTER and CONFIG_IP_ROUTE_MULTIPATH is set.
                    342: 
                    343: --enable-multipath=ARG  # ARG must be digit.  When ARG is 0 unlimit multipath number.
                    344: 
                    345: ** From this release we do not include guile files.
                    346: 
                    347: * Changes in lib
                    348: 
                    349: ** newlist.[ch] is merged with linklist.[ch].
                    350: 
                    351: ** Now Zebra works on MacOS X public beta.
                    352: 
                    353: ** Access-list can have remark.  "access-list WORD remark LINE" define
                    354: remark for specified access-list.
                    355: 
                    356: ** Key of key-chain is sorted by it's idetifier value.
                    357: 
                    358: ** prefix-list rule is slightly changed.  The rule of "len <= ge-value
                    359: <= le-value" is changed to "len < ge-value <= le-value".
                    360: 
                    361: ** According to above prefix-list rule change, add automatic
                    362: conversion function of an old rule. ex.) 10.0.0.0/8 ge 8 -> 10.0.0.0/8
                    363: le 32
                    364: 
                    365: ** SMUX can handle SNMP trap.
                    366: 
                    367: ** In our event library, event thread is executed before any other
                    368: thread like timer, read and write event.
                    369: 
                    370: ** Robust method for writing configuration file and recover from
                    371: backing up config file.
                    372: 
                    373: ** Display "end" at the end of configuration.
                    374: 
                    375: ** Fix memory leak in vtysh_read().
                    376: 
                    377: ** Fix memroy leak about access-list and prefix-list name.
                    378: 
                    379: * Changes in zebra
                    380: 
                    381: ** UNIX domain socket server of zebra protocol is added.
                    382: 
                    383: ** Fix PointoPoint interface network bug.  The destination network
                    384: should be installed into routing table instead of local network.
                    385: 
                    386: ** Metric value is reflected to kernel routing table.
                    387: 
                    388: ** "show ip route" display uptime of RIP,OSPF,BGP routes.
                    389: 
                    390: ** New RIB implementation is added.
                    391: 
                    392: Now we have enhanced RIB (routing information base) implementation in
                    393: zebra.  New RIB has many new features and fixed some bugs which exist
                    394: in old RIB code.
                    395: 
                    396: *** Static route with distance value
                    397: 
                    398:     Static route can be specified with administrative distance.  The
                    399:   distance value 255 means it is not installed into the kernel.
                    400:   Default value of distance for static route is 1.
                    401:   
                    402:     ip route A.B.C.D/M A.B.C.D <1-255>
                    403:     ip route A.B.C.D/M IFNAME <1-255>
                    404:   
                    405:     If the least distance value's route's nexthop are unreachable,
                    406:   select the least distance value route which has reachable nexthop is
                    407:   selected.
                    408:   
                    409:     ip route 0.0.0.0/0 10.0.0.1
                    410:     ip route 0.0.0.0/0 11.0.0.1 2
                    411:   
                    412:     In this case, when 10.0.0.1 is unreachable and 11.0.0.1 is
                    413:   reachable.  The route with nexthop 11.0.0.1 will be installed into
                    414:   forwarding table.
                    415:   
                    416:     zebra> show ip route
                    417:     S>* 0.0.0.0/0 [2/0] via 11.0.0.1
                    418:     S   0.0.0.0/0 [1/0] via 10.0.0.1 inactive
                    419:   
                    420:     If the nexthop is unreachable "inactive" is displayed.  You can
                    421:   specify any string to IFNAME.  There is no need of the interface is
                    422:   there when you configure the route.
                    423:   
                    424:     ip route 1.1.1.1/32 ppp0
                    425:   
                    426:   When ppp0 comes up, the route is installed properly.
                    427: 
                    428: *** Multiple nexthop routes for one prefix
                    429: 
                    430:     Multiple nexthop routes can be specified for one prefix.  Even the
                    431:   kernel support only one nexthop for one prefix user can configure
                    432:   multiple nexthop.
                    433:   
                    434:     When you configure routes like below, prefix 10.0.0.1 has three
                    435:   nexthop.
                    436:   
                    437:     ip route 10.0.0.1/32 10.0.0.2
                    438:     ip route 10.0.0.1/32 10.0.0.3
                    439:     ip route 10.0.0.1/32 eth0
                    440:   
                    441:     If there is no route to 10.0.0.2 and 10.0.0.3.  And interface eth0
                    442:     is reachable, then the last route is installed into the kernel.
                    443:   
                    444:     zebra> show ip route
                    445:     S>  10.0.0.1/32 [1/0] via 10.0.0.2 inactive
                    446:                           via 10.0.0.3 inactive
                    447:       *                   is directly connected, eth0
                    448:   
                    449:     '*' means this nexthop is installed into the kernel. 
                    450: 
                    451: *** Multipath (more than one nexthop for one prefix) can be installed into the kernel.
                    452: 
                    453:     When the kernel support multipath, zebra can install multipath
                    454:   routes into the kernel.  Before doing that please make it sure that
                    455:   setting --enable-multipath=ARG to configure script.  ARG must be digit
                    456:   value.  When specify 0 to ARG, there is no limitation of the number
                    457:   of the multipath.  Currently only GNU/Linux with netlink interface is
                    458:   supported.
                    459:   
                    460:     ip route 10.0.0.1/32 10.0.0.2
                    461:     ip route 10.0.0.1/32 10.0.0.3
                    462:     ip route 10.0.0.1/32 eth0
                    463:   
                    464:     zebra> show ip route
                    465:     S>* 10.0.0.1/32 [1/0] via 10.0.0.2
                    466:       *                   via 10.0.0.3
                    467:                           is directly connected, eth0
                    468: 
                    469: *** Kernel message delete installed route.
                    470: 
                    471:     After zebra install static or dynamic route into the kernel.
                    472:   
                    473:     R>* 0.0.0.0/0 [120/3] via 10.0.0.1
                    474:   
                    475:     If you delete this route outside zebra, old zebra does not reinstall
                    476:   route again.  Now the route is re-processed and properly reinstall the
                    477:   static or dynamic route into the kernel.
                    478: 
                    479: ** GNU/Linux netlink socket handling is improved to fix race condition
                    480: between kernel message and user command responce.
                    481: 
                    482: * Changes in bgpd
                    483: 
                    484: ** Add show neighbor's routes command.
                    485: 
                    486:   "show ip bgp neighbors (A.B.C.D|X:X::X:X) routes"
                    487:   "show ip bgp ipv4 (unicast|multicast) neighbors (A.B.C.D|X:X::X:X) routes"
                    488:   "show ipv6 bgp neighbors (A.B.C.D|X:X::X:X) routes"
                    489:   "show ipv6 mbgp neighbors (A.B.C.D|X:X::X:X) routes"
                    490: 
                    491: ** BGP passive peer support problem is fixed.
                    492: 
                    493: ** Redistributed IGP nexthop is passed to BGP nexthop.
                    494: 
                    495: ** On multiaccess media, if the nexthop is reachable nexthop is passed
                    496: as it is.
                    497: 
                    498: ** Remove zebra-0.88 compatibility commands.
                    499: 
                    500:   "match ip prefix-list WORD"
                    501:   "match ipv6 prefix-list WORD"
                    502: 
                    503:   Instead of above please use below commands.
                    504: 
                    505:   "match ip address prefix-list WORD"
                    506:   "match ipv6 address prefix-list WORD"
                    507: 
                    508: ** Fix bug of holdtimer is not reset when bgp cleared.
                    509: 
                    510: ** "show ip bgp summary" display peer establish/drop count.
                    511: 
                    512: ** Change "match ip next-hop" argument from IP address to access-list
                    513: name.
                    514: 
                    515: ** When "bgp enforce-first-as" is enabled, check EBGP peer's update
                    516: has it's AS number in the first AS number in AS sequence.
                    517: 
                    518: ** New route-map command "set community-delete COMMUNITY-LIST" is
                    519: added.  Community matched the CoMMUNITY-LIST is removed from the
                    520: community.
                    521: 
                    522: ** BGP-MIB implementation is finished.
                    523: 
                    524: ** When BGP connection comes from unconfigured IP address, close
                    525: socket immediately.
                    526: 
                    527: ** Do not compare router ID when the routes comes from EBGP peer.
                    528: When originator ID is same, take shorter cluster-list route.  If
                    529: cluster-list is same take smaller IP address neighbor's route.
                    530: 
                    531: ** Add "bgp bestpath as-path ignore" command.  When this option is
                    532: set, do not concider AS path length when route selection.
                    533: 
                    534: ** Add "bgp bestpath compare-routerid".  When this option is set,
                    535: compare router ID when the routes comes from EBGP peer.
                    536: 
                    537: ** Add "bgp deterministic-med" process.
                    538: 
                    539: ** BGP flap dampening feature is added.
                    540: 
                    541: ** When IBGP nexthop is changed, it is reflected to RIB.
                    542: 
                    543: ** Change "neighbor route-refresh" command to "neighbor capability
                    544: route-refresh".
                    545: 
                    546: * Changes in ripd
                    547: 
                    548: ** Change "match ip next-hop" argument from IP address to access-list
                    549: name.
                    550: 
                    551: ** "no ip rip (send|receive)" command accept version number argument.
                    552: 
                    553: ** Memory leak related classfull network generation is fixed.
                    554: 
                    555: ** When a route is in garbage collection process (invalid with metric
                    556: 16) and a router receives the same route with valid metric then route
                    557: was not installed into zebra rib, but only into ripd rib. Moreover ,
                    558: it will never get into zebra rib, because ripd wrongly assumes it's
                    559: already there.
                    560: 
                    561: * Change in ospfd
                    562: 
                    563: ** Fix bug of refreshing default route.
                    564: 
                    565: ** --enable-nssa turn on undergoing NSSA feature.
                    566: 
                    567: ** Fix bug of Hello packet's option is not properly set when interface
                    568: comes up.
                    569: 
                    570: ** Reduce unconditional logging.
                    571: 
                    572: ** Add nexthop to OSPF path only when it is not there.
                    573: 
                    574: ** When there is no DR on network (suppose you have only one router
                    575: with interface priority 0). It's router LSA does not contain the link
                    576: information about this network.
                    577: 
                    578: ** When you change a priority of interface from/to 0
                    579: ISM_NeighborChange event should be scheduled in order to elect new
                    580: DR/BDR on the network.
                    581: 
                    582: ** When we add some LSA into retransmit list we need to check whether
                    583: the present old LSA in retransmit list is not more recent than the new
                    584: one.
                    585: 
                    586: ** In states Loading and Full the slave must resend its last Database
                    587: Description packet in response to duplicate Database Description
                    588: packets received from the master.  For this reason the slave must wait
                    589: RouterDeadInterval seconds before freeing the last Database
                    590: Description packet. Reception of a Database Description packet from
                    591: the master after this interval will generate a SeqNumberMismatch
                    592: neighbor event. RFC2328 Section 10.8
                    593: 
                    594: ** Virtual link can not configured in stub area.
                    595: 
                    596: ** Clear a ls_upd_queue queue of the interface when interface goes
                    597: down.
                    598: 
                    599: ** "no router ospf" unregister redistribution requests from zebra.
                    600: 
                    601: ** New command for virtual-link configuration is added.
                    602: 
                    603:   "area A.B.C.D virtual-link A.B.C.D"
                    604:   "area A.B.C.D virtual-link A.B.C.D hello-interval <1-65535> retransmit-interval <3-65535> transmit-delay <1-65535> dead-interval <1-65535>"
                    605:   "area A.B.C.D virtual-link A.B.C.D hello-interval <1-65535> retransmit-interval <3-65535> transmit-delay <1-65535> dead-interval <1-65535> authentication-key AUTH_KEY"
                    606:   "area A.B.C.D virtual-link A.B.C.D authentication-key AUTH_KEY"
                    607:   "area A.B.C.D virtual-link A.B.C.D hello-interval <1-65535> retransmit-interval <3-65535> transmit-delay <1-65535> dead-interval <1-65535> message-digest-key <1-255> md5 KEY"
                    608:   "area A.B.C.D virtual-link A.B.C.D message-digest-key <1-255> md5 KEY"
                    609: 
                    610: ** Clear cryptographic sequence number when neighbor status is changed
                    611: to NSM down.
                    612: 
                    613: ** Make Summary LSA's origination and refreshment as same as other
                    614: type of LSA.
                    615: 
                    616: ** New OSPF pakcet read method. Now maximum packet length may be 65535
                    617: bytes (maximum IP packet length).
                    618: 
                    619: ** Checking the age of the found LSA and if the LSA is MAXAGE we
                    620: should call refresh instead of originate.
                    621: 
                    622: ** Install multipath information to zebra.
                    623: 
                    624: ** Fix socket descriptor leak when system call failed.
                    625: 
                    626: * Changes in ospf6d
                    627: 
                    628: ** Whole functionality has been rewritten as new code. new command
                    629: "show ipv6 ospf6 spf node", "show ipv6 ospf6 spf tree", "show ipv6
                    630: ospf6 spf table" has been added.
                    631: 
                    632: ** Change to do not send garbage route whose nexthop is not linklocal
                    633: address.
                    634: 
                    635: ** "redistribute ospf6" was generated in "router ospf6" in config
                    636: file. It is fixed.
                    637: 
                    638: ** LSDB sync bug is fixed.
                    639: 
                    640: ** Fix bug of using unavailable route.
                    641: 
                    642: * Changes in vtysh
                    643: 
                    644: ** route-map and access-list configuration is merged into one
                    645: configuration.
                    646: 
                    647: ** /usr/local/etc/Zebra.conf is integrated configuration file.  "write
                    648: memory" in vtysh will write whole configuration to this file.
                    649: 
                    650: ** When -b option is specified to vtysh, vtysh read
                    651: /usr/local/etc/Zebra.conf file then pass the confuguration to proper
                    652: protocol daemon.  So make all protocol daemon's configuration file
                    653: empty then invoke all daemon.  After that vtysh -b will setup saved
                    654: configuration.
                    655: 
                    656: zebrastart.sh
                    657: =============
                    658: /usr/local/sbin/zebra -d
                    659: /usr/local/sbin/ripd -d
                    660: /usr/local/sbin/ospfd -d
                    661: /usr/local/sbin/bgpd -d
                    662: /usr/local/bin/vtysh -b
                    663: 
                    664: * Changes in zebra-0.89
                    665: 
                    666: * Changes in lib
                    667: 
                    668: ** distribute-list can set all interface's access-list and prefix-list
                    669: configuration.
                    670: 
                    671: * Changes in ripd
                    672: 
                    673: ** "show ip protocols" display proper distribute-list settings and
                    674: distance settings.
                    675: 
                    676: ** When metric infinity route received withdraw the route from kernel
                    677: immediately it used to be wait garbage collection.
                    678: 
                    679: ** key-chain can be used for simple password authentication.
                    680: 
                    681: ** RIPv2 MIB getnext interface bug is fixed.
                    682: 
                    683: * Changes in vtysh
                    684: 
                    685: ** --with-libpam enable PAM authentication for vtysh.
                    686: 
                    687: ** Now vtysh read vtysh.conf.  This file should be
                    688: ${SYSCONFDIR}/etc/vtysh.conf for security reason.  Usually it is
                    689: /usr/local/etc/vtysh.conf.
                    690: 
                    691: ** "username WORD nopassword" command is added to vtysh.
                    692: 
                    693: * Chagees in ospfd
                    694: 
                    695: ** NBMA interface support is added.
                    696: 
                    697: ** OSPF area is sorted by area ID.
                    698: 
                    699: ** New implementation of OSPF refreesh.
                    700: 
                    701: ** OSPF-MIB read function is partly added.
                    702: 
                    703: * Changes in bgpd
                    704: 
                    705: ** When the peering is done by ebgp-multihop, nexthop is looked up
                    706: like IBGP routes.
                    707: 
                    708: ** "show ip mbgp" commands are changed to "show ip bgp ipv4
                    709: multicast".
                    710: 
                    711: ** New terminal commands are added.
                    712:   "show ip bgp ipv4 (unicast|multicast) filter-list WORD"
                    713:   "show ip bgp ipv4 (unicast|multicast) community"
                    714:   "show ip bgp ipv4 (unicast|multicast) community-list WORD"
                    715:   "show ip bgp ipv4 (unicast|multicast) community-list WORD exact-match"
                    716: 
                    717: ** MBGP soft-reconfiguration command is added.
                    718:   "clear ip bgp x.x.x.x ipv4 (unicast|multicast) in"
                    719:   "clear ip bgp x.x.x.x ipv4 (unicast|multicast) out"
                    720:   "clear ip bgp x.x.x.x ipv4 (unicast|multicast) soft"
                    721:   "clear ip bgp <1-65535> ipv4 (unicast|multicast) in"
                    722:   "clear ip bgp <1-65535> ipv4 (unicast|multicast) out"
                    723:   "clear ip bgp <1-65535> ipv4 (unicast|multicast) soft"
                    724:   "clear ip bgp * ipv4 (unicast|multicast) in"
                    725:   "clear ip bgp * ipv4 (unicast|multicast) out"
                    726:   "clear ip bgp * ipv4 (unicast|multicast) soft"
                    727: 
                    728: ** MED related commands are added.
                    729:   "bgp deterministic-med"
                    730:   "bgp bestpath med confed"
                    731:   "bgp bestpath med missing-as-worst"
                    732: 
                    733: ** "bgp default local-preference" command is added.
                    734: 
                    735: ** BGP confederation peer's routes are passed to zebra like IBGP route.
                    736: 
                    737: ** Community match command is added.
                    738:   "show ip bgp community <val>"
                    739:   "show ip bgp community <val> exact-match"
                    740: 
                    741: ** EBGP multihop route treatment bug is fixed.  Now nexthop is
                    742: resolved by IGP routes.
                    743: 
                    744: ** Some commands are added to show routes by filter-list and community
                    745: value.
                    746:   "show ip bgp ipv4 (unicast|multicast) filter-list WORD"
                    747:   "show ip bgp ipv4 (unicast|multicast) community"
                    748:   "show ip bgp ipv4 (unicast|multicast) community-list WORD"
                    749:   "show ip bgp ipv4 (unicast|multicast) community-list WORD exact-match"
                    750: 
                    751: * Changes in zebra
                    752: 
                    753: ** zebra read interface's address information using getifaddrs() when
                    754: it is available.
                    755: 
                    756: ** Reflect IPv6 interface's address change to protocol daemons.
                    757: 
                    758: * Changes in zebra-0.88
                    759: 
                    760: * Changes in lib
                    761: 
                    762: ** "exact-match" option is added to "access-list" and "ipv6
                    763: access-list" command.  If this option is specified, the prefix and
                    764: prefix length is compared as exact match mode.
                    765: 
                    766: * Changes in zebra
                    767: 
                    768: ** New Zebra message ZEBRA_REDISTRIBUTE_DEFAULT_ADD and
                    769: ZEBRA_REDISTRIBUTE_DEFAULT_DELTE are added.
                    770: 
                    771: ** Default administrative distance value is changed.
                    772: 
                    773:             Old         New
                    774: ------------------------------------------
                    775: system      10           0
                    776: kernel      20           0
                    777: connected   30           0
                    778: static      40           1
                    779: rip         50         120
                    780: ripng       50         120
                    781: ospf        60         110
                    782: ospf6       49         110
                    783: bgp         70         200(iBGP)  20(eBGP)
                    784: ------------------------------------------
                    785: 
                    786: ** Distance value can be passed from protocol daemon to zebra.
                    787: 
                    788: ** "show ip route" shows [metric/distance] value pair.
                    789: 
                    790: ** Zebra Protocol is changed to support multi-path route and distance
                    791: value.
                    792: 
                    793: * Changes in ospfd
                    794: 
                    795: ** "default-information originate [always]" command is added.
                    796: 
                    797: ** "default-metric <0-16777214>" command is added.
                    798: 
                    799: ** "show ip ospf database" command is integrated.  LS-ID and AdvRouter can
                    800:    be specifed.  The commands are
                    801: 
                    802:    show ip ospf database TYPE LS-ID
                    803:    show ip ospf database TYPE LS-ID ADV-ROUTER
                    804:    show ip ospf database TYPE LS-ID self-originate
                    805:    show ip ospf database TYPE self-originate
                    806: 
                    807: ** route-map support for `redistribute' command are added.
                    808:    Supported `match' statements are
                    809: 
                    810:    match interface
                    811:    match ip address
                    812:    match next-hop
                    813: 
                    814:    Supported `set' statements are
                    815: 
                    816:    set metric
                    817:    set metric-type
                    818: 
                    819: ** Pass OSPF metric value to zebra daemon.
                    820: 
                    821: * Changes in ripd
                    822: 
                    823: ** When specified route-map does not exist, it means all deny.
                    824: 
                    825: ** "default-metric <1-16>" command is added.
                    826: 
                    827: ** "offset-list ACCESS-LIST-NAME <0-16>" and "offset-list
                    828: ACCESS-LIST-NAME <0-16> IFNAME" commands are added.
                    829: 
                    830: ** "redistribute ROUTE-TYPE metric <0-16>" command is added.
                    831: 
                    832: ** "default-information originate" command is added.
                    833: 
                    834: ** "ip split-horizon" and "no ip split-horizon" is added to interface
                    835: configuration.
                    836: 
                    837: ** "no router rip" command is added.
                    838: 
                    839: ** "ip rip authentication mode (md5|text)" is added to interface
                    840: configuration.
                    841: 
                    842: ** "ip rip authentication key-chain KEY-CHAIN" is added to interface
                    843: configuration.
                    844: 
                    845: ** Pass RIP metric value to zebra daemon.
                    846: 
                    847: ** Distance manipulation functions are added.
                    848: 
                    849: * Changes in bgpd
                    850: 
                    851: ** Fix bug of next hop treatment for MPLS-VPN route exchange.
                    852: 
                    853: ** BGP peer MIB is updated.
                    854: 
                    855: ** Aggregated route has origin IGP, atomic-aggregate and proper
                    856: aggregator attribute.
                    857: 
                    858: ** Suppressed route now installed into BGP table.  It is only
                    859: suppressed from announcement.
                    860: 
                    861: ** BGP router-id is properly set after "no router bgp ASN" and "router
                    862: bgp ASN".
                    863: 
                    864: ** Add check for nexthop is accessible or not for IBGP routes.
                    865: 
                    866: ** Add cehck for nexthop is on connected or not for EBGP routes.
                    867: 
                    868: ** "dump bgp route" command is changed to "dump bgp route-mrt" for
                    869: generating MRT compatible dump output.
                    870: 
                    871: ** Soft reconfiguration inbound and outbound is supported.
                    872: 
                    873: ** Route refresh feature is supported.
                    874: 
                    875: * Changes in vtysh
                    876: 
                    877: ** VTY shell is now included into the distribution.
                    878: 
                    879: * Changes in zebra-0.87
                    880: 
                    881: * Changes in lib
                    882: 
                    883: ** "show startup-config" command is added.
                    884: 
                    885: ** "show history" command is added.
                    886: 
                    887: ** Memory statistics command is changed.  New command
                    888: 
                    889:    show memory all
                    890:    show memory lib
                    891:    show memory rip
                    892:    show memory ospf
                    893:    show memory bgp
                    894: 
                    895: are added.
                    896: 
                    897: ** Filters can be removed only specify it's name.  New command
                    898: 
                    899:    no access-list NAME
                    900:    no ip community-list NAME
                    901:    no ip as-path access-list NAME
                    902:    no route-map NAME
                    903: 
                    904: are added.
                    905: 
                    906: ** At any node, user can view/save user configuration.
                    907: 
                    908:    write terminal
                    909:    write file
                    910:    wirte memory
                    911: 
                    912: are added to every node in default.
                    913: 
                    914: ** LCD completion is added.  For example both "ip" and "ipv6" command
                    915: are exist, "i" then press TAB will be expanded to "ip".
                    916: 
                    917: * Changes in bgpd
                    918: 
                    919: ** "show ip bgp" family shows total number of prefixes.
                    920: 
                    921: ** "no bgp default ipv4-unicast" command is added.
                    922: 
                    923: ** Extended Communities support is added.
                    924: 
                    925: ** "no neighbor PEER send-community extended" command is added.
                    926: 
                    927: ** MPLS-VPN PE-RR support is added.
                    928: 
                    929:  New address family vpnv4 unicast is introduced.
                    930: 
                    931:   !
                    932:   address-family vpnv4 unicast
                    933:    neighobr PEER activate
                    934:    network A.B.C.D rd RD tag TAG
                    935:   exit-address-family
                    936:   !
                    937: 
                    938:  To make it route-reflector, please configure it under normal router
                    939: bgp ASN.
                    940: 
                    941:   !
                    942:   router bgp 7675
                    943:    no bgp default ipv4-unicast
                    944:    bgp router-id 10.0.0.100
                    945:    bgp cluster-id 10.0.0.100
                    946:    neighbor 10.0.0.1 remote-as 65535
                    947:    neighbor 10.0.0.1 route-reflector-client
                    948:    neighbor 10.0.0.2 remote-as 65535
                    949:    neighbor 10.0.0.2 route-reflector-client
                    950:    neighbor 10.0.0.3 remote-as 65535
                    951:    neighbor 10.0.0.3 route-reflector-client
                    952:   !
                    953:   address-family vpnv4 unicast
                    954:    neighbor 10.0.0.1 activate
                    955:    neighbor 10.0.0.2 activate
                    956:    neighbor 10.0.0.3 activate
                    957:   exit-address-family
                    958:   !
                    959: 
                    960: * Changes in ospfd
                    961: 
                    962: ** Many many bugs are fixed.
                    963: 
                    964: * Changes in ripd
                    965: 
                    966: ** Better interface up/down event handle.
                    967: 
                    968: * Changes in zebra
                    969: 
                    970: ** Better interface up/down event handle.
                    971: 
                    972: * Changes in zebra-0.86
                    973: 
                    974: * Changes in lib
                    975: 
                    976: ** Fix bug of exec-timeout command which may cause crush.
                    977: 
                    978: ** Multiple same policy for "access-list", "ip prefix-list, "as-path
                    979: access-list", "ip community-list" is not duplicated.
                    980: 
                    981: ** It used to be "ip prefix-list A.B.C.D/M" match routes which mask >=
                    982: M.  Now default behavior is exact match so it only match routes which
                    983: mask == M.
                    984: 
                    985: * Changes in bgpd
                    986: 
                    987: ** "match ip address prefix-list" is added to route-map.
                    988: 
                    989: ** A route without local preference is evaluated as 100 local preference.
                    990: 
                    991: ** Select smaller router-id route when other values are same.
                    992: 
                    993: ** Compare MED only both routes comes from same neighboring AS.
                    994: 
                    995: ** "bgp always-compare-med" command is added.
                    996: 
                    997: ** Now MED value is passed to IBGP peer.
                    998: 
                    999: ** When neighbor's filter is configured with non-existent access-list,
                   1000: as-path access-list, ip prefix-list, route-map.  The behavior is
                   1001: changed from all permit to all deny.
                   1002: 
                   1003: * Changes in ospfd
                   1004: 
                   1005: ** Fix bug of external route tag byte order.
                   1006: 
                   1007: ** OSPF Neighbor deletion bug which cause crush is fixed.
                   1008: 
                   1009: ** Some route calculation bug are fixed.
                   1010: 
                   1011: ** Add sanity check with router        routing table.
                   1012: 
                   1013: ** Fix bug of memory leak about linklist.
                   1014: 
                   1015: ** Fix bug of 1-WayReceived in NSM.
                   1016: 
                   1017: ** Take care of BIGENDIAN architecture.
                   1018: 
                   1019: ** Fix bug of NSM state flapping between ExStart and Exchange.
                   1020: 
                   1021: ** Fix bug of Network-LSA originated in stub network.
                   1022: 
                   1023: ** Fix bug of MS flag unset.
                   1024: 
                   1025: ** Add to schedule router_lsa origination when the interface cost
                   1026: changes.
                   1027: 
                   1028: ** Increment LS age by configured interface transmit_delay.
                   1029: 
                   1030: ** distribute-list is reimplemented.
                   1031: 
                   1032: ** Fix bug of refresh never occurs.
                   1033: 
                   1034: ** Fix bug of summary-LSAs reorigination.  Correctly copy
                   1035: OSPF_LSA_APPROVED flag to new LSA. when summary-LSA is reoriginatd.
                   1036: 
                   1037: ** Fix bug of re-origination when a neighbor disappears.
                   1038: 
                   1039: ** Fix bug of segmentation fault with DD retransmission.
                   1040: 
                   1041: ** Fix network-LSA re-origination problem.
                   1042: 
                   1043: ** Fix problem of remaining withdrawn routes on zebra.
                   1044: 
                   1045: * Changes in ripd
                   1046: 
                   1047: ** Do not leave from multicast group when interface goes down bug is
                   1048: fixed.
                   1049: 
                   1050: * Changes in zebra
                   1051: 
                   1052: ** Remove client structure when client dies.
                   1053: 
                   1054: ** Take care static route when interface goes up/down.
                   1055: 
                   1056: * Changes in zebra-0.85
                   1057: 
                   1058: * Changes in bgpd
                   1059: 
                   1060: ** "transparent-nexthop" and "transparenet-as" commands are added.
                   1061: 
                   1062: ** Route reflector's originator-id bug is fixed.
                   1063: 
                   1064: * Changes in ospfd
                   1065: 
                   1066: ** Fix bug of OSPF LSA memory leak.
                   1067: 
                   1068: ** Fix bug of OSPF external route memory leak.
                   1069: 
                   1070: ** AS-external-LSA origination bug was fixed.
                   1071: 
                   1072: ** LS request treatment is completely rewritten.  Now performance is
                   1073: drastically improved.
                   1074: 
                   1075: * Changes in ripd
                   1076: 
                   1077: ** RIPv1 update is done by class-full manner.
                   1078: 
                   1079: * Changes in zebra-0.84b
                   1080: 
                   1081: * Changes in lib
                   1082: 
                   1083: ** Fix bug of inet_pton return value handling
                   1084: 
                   1085: * Changes in bgpd
                   1086: 
                   1087: ** Fix bug of BGP-4+ link-local address nexthop check for IBGP peer.
                   1088: 
                   1089: ** Don't allocate whole buffer for displaying "show ip bgp".  Now it
                   1090: consume only one screen size memory.
                   1091: 
                   1092: * Changes in ripd
                   1093: 
                   1094: ** Fix debug output string.
                   1095: 
                   1096: ** Add RIP peer handling.  RIP peer are shown by "show ip protocols".
                   1097: 
                   1098: * Changes in zebra-0.84a
                   1099: 
                   1100: * Changes in bgpd
                   1101: 
                   1102: ** Fix serious bug of BGP-4+ peering under IPv6 link-local address.
                   1103:    Due to the bug BGP-4+ peering may not be established.
                   1104: 
                   1105: * Changes in zebra-0.84
                   1106: 
                   1107: * Changes in lib
                   1108: 
                   1109: ** IPv6 address and prefix parser is added to VTY by Toshiaki Takada
                   1110:    <takada@zebra.org>.  DEFUN string is "X:X::X:X" for IPv6 address,
                   1111:    "X:X::X:X/M" for IPv6 prefix.  You can use it like this.
                   1112: 
                   1113:    DEFUN (func, cmd, "neighbor (A.B.C.D|X:X::X:X) remote-as <1-65535>")
                   1114: 
                   1115: ** VTY configuration is locked during configuration.  This is for
                   1116:    avoiding unconditional crush from two terminals modify the
                   1117:    configuration at the same time.  "who" command shows which termnal
                   1118:    lock the configuration.  VTY which has '*' character at the head of
                   1119:    line is locking the configuration.
                   1120: 
                   1121: ** Old logging functions are removed.  Functions like
                   1122:    log_open,log_close,openlog are deleted.  Instead of that please use
                   1123:    zlog_* functions.  zvlog_* used in ospf6d are deleted also.
                   1124: 
                   1125: ** "terminal monitor" command is added.  "no terminal monitor" is for
                   1126:    disabling.  This command simply display logging information to the
                   1127:    VTY.
                   1128: 
                   1129: ** dropline.[ch] files are deleted.
                   1130: 
                   1131: * Changes in bgpd
                   1132: 
                   1133: ** BGP neighbor configuration are sorted by it's IP address.
                   1134: 
                   1135: ** BGP peer configuration and actual peer is separated.  This is
                   1136:    preparation for Route Server support.
                   1137: 
                   1138: ** "no neighbor PEER" command is added. You can delete neighbor
                   1139:    without specifying AS number.
                   1140: 
                   1141: ** "no neighbor ebgp-multihop" command is added.
                   1142: 
                   1143: ** "no neighbor port PORT" command is added.
                   1144: 
                   1145: ** To conform RFC1771, "neighbor PEER send-community" is default
                   1146:    behavior.  If you want to disable sending community attribute,
                   1147:    please specify "no neighbor PEER send-community" to the peer.
                   1148: 
                   1149: ** "neighbor maximum-prefix NUMBER" command is added.
                   1150: 
                   1151: ** Multi-protocol extention NLRI is proceeded only when the peer is
                   1152:    configured proper Address Family and Subsequent Address Family.  If
                   1153:    not, those NLRI are simply ignored.
                   1154: 
                   1155: ** Aggregate-address support is improved.  Currently below commands
                   1156:    works.
                   1157: 
                   1158:   "aggregate-address"
                   1159:   "aggregate-address summary-only"
                   1160:   "no aggregate-address"
                   1161:   "no aggregate-address summary-only"
                   1162: 
                   1163:   "ipv6 bgp aggregate-address"
                   1164:   "ipv6 bgp aggregate-address summary-only"
                   1165:   "no ipv6 bgp aggregate-address"
                   1166:   "no ipv6 bgp aggregate-address summary-only"
                   1167: 
                   1168: ** redistribute route-map bug is fixed.
                   1169: 
                   1170: ** MBGP support becomes default.  "configure" option --enable-mbgp is
                   1171:    removed.
                   1172: 
                   1173: ** New command "neighbor PEER timers connect <1-65535>" is added.
                   1174: 
                   1175: ** New command "neighbor PEER override-capability" is added.
                   1176: 
                   1177: ** New command "show ip bgp neighbor A.B.C.D advertised-route" is added.
                   1178: 
                   1179: ** New command "show ip bgp neighbor A.B.C.D routes" is added.  To use
                   1180:    this command, you have to configure neighbor with
                   1181:    "neighbor A.B.C.D soft-reconfiguration inbound" beforehand.
                   1182:    
                   1183: 
                   1184: * Changes in zebra-0.83
                   1185: 
                   1186: * bgpd
                   1187: 
                   1188: ** Serious bug fix about fetching global and link-local address at the
                   1189: same time.  Due to this bug, corrupted IPv6 prefix is generated.  If
                   1190: you uses bgpd for BGP-4+ please update to this version.  The bug is
                   1191: introduced in zebra-0.82.
                   1192: 
                   1193: ** When bgpd send Notify message, don't use thread manager.  It is now
                   1194: send to neighbor immediately.
                   1195: 
                   1196: * Changes in zebra-0.82
                   1197: 
                   1198: ** Solaris 2.6 support is added by Michael Handler
                   1199: <handler@sub-rosa.com>.
                   1200: 
                   1201: ** MBGP support is added by Robert Olsson <Robert.Olsson@data.slu.se>.
                   1202: Please specify --enable-mbgp to configure script.  This option will be
                   1203: removed in the future and MBGP support will be default.
                   1204: 
                   1205: * Changes in zebra
                   1206: 
                   1207: ** When interface goes down, withdraw connected routes from routing
                   1208: table.  When interface goes up, restore the routes to the routing
                   1209: table.
                   1210: 
                   1211: ** `show interface' show interface's statistics on Linux and BSD with
                   1212: routing socket.
                   1213: 
                   1214: ** Now zebra can get MTU value on BSDI/OS.
                   1215: 
                   1216: * Changes in bgpd
                   1217: 
                   1218: ** Add capability option support based upon
                   1219: draft-ietf-idr-bgp4-cap-neg-04.txt.
                   1220: 
                   1221: ** Add `show ipv6 bgp prefix-list' command.
                   1222: 
                   1223: ** Check self AS appeared in received routes.
                   1224: 
                   1225: ** redistribute route-map support is added.
                   1226: 
                   1227: ** BGP packet dump feature compatible with MRT.
                   1228: 
                   1229: * Changes in ripd
                   1230: 
                   1231: ** Fix bug of `timers basic' command's argument format.
                   1232: 
                   1233: * Changes in ripngd
                   1234: 
                   1235: ** Calculate max RTE using interface's MTU value.
                   1236: 
                   1237: * Changes in ospfd
                   1238: 
                   1239: ** Some correction to LSU processing.
                   1240: 
                   1241: ** Add check for lsa->refresh_list.
                   1242: 
                   1243: * Changes in ospf6d
                   1244: 
                   1245: ** Many debug feature is added.
                   1246: 
                   1247: * Changes in zebra-0.81
                   1248: 
                   1249: ** SNMP support is disabled in default.--enable-snmp option is added
                   1250: to configure script.
                   1251: 
                   1252: * Changes in bgpd
                   1253: 
                   1254: ** Fix FSM bug which introduced in zebra-0.80.
                   1255: 
                   1256: * Changes in zebra-0.80
                   1257: 
                   1258: * access-list
                   1259: 
                   1260:   New access-list name space `ipv6 access-list' is added.  At the same
                   1261:   time, `access-list' statemant only accepts IPv4 prefix.  Please be
                   1262:   careful if you use IPv6 filtering.  You will need to change your
                   1263:   configuration.  For IPv6 filtering please use `ipv6 access-list'.
                   1264:   
                   1265:   As of zebra-0.7x, user can use `access-list' for both IPv4 and IPv6
                   1266:   filtering.
                   1267:   
                   1268:   ! zebra-0.7x
                   1269:   access-list DML-net permit 203.181.89.0/24
                   1270:   access-list DML-net permit 3ffe:506::0/32
                   1271:   access-list DML-net deny any
                   1272:   !
                   1273:   
                   1274:   Above configuration is not valid for zebra-08x.  Please add `ipv6'
                   1275:   before 'access-list' when you configure IPv6 filtering.
                   1276:   
                   1277:   ! zebra-0.8x
                   1278:   access-list DML-net permit 203.181.89.0/24
                   1279:   access-list DML-net deny any
                   1280:   !
                   1281:   ipv6 access-list DML-net permit 3ffe:506::0/32
                   1282:   ipv6 access-list DML-net deny any
                   1283:   !
                   1284: 
                   1285: * prefix-list
                   1286: 
                   1287:   And also new prefix-list name space `ipv6 prefix-list' is added.  It
                   1288:   is the same as the change of `access-list'. `ip prefix-list' now only
                   1289:   accept IPv4 prefix.  It was source of confusion that `ip prefix-list'
                   1290:   can be used both IPv4 and IPv6 filtering.  Now name space is separated
                   1291:   to clear the meaning of the filter.
                   1292:   
                   1293:   If you use `ip prefix-list' for IPv6 filtering, please change the
                   1294:   stetement.
                   1295:   
                   1296:   ! zebra-0.7x
                   1297:   ip prefix-list 6bone-filter seq 5 permit 3ffe::/17 le 24 ge 24
                   1298:   ip prefix-list 6bone-filter seq 10 permit 3ffe:8000::/17 le 28 ge 28
                   1299:   ip prefix-list 6bone-filter seq 12 deny 3ffe::/16
                   1300:   ip prefix-list 6bone-filter seq 15 permit 2000::/3 le 16 ge 16
                   1301:   ip prefix-list 6bone-filter seq 20 permit 2001::/16 le 35 ge 35
                   1302:   ip prefix-list 6bone-filter seq 30 deny any
                   1303:   !
                   1304:   
                   1305:   Now user can explicitly configure it as IPv6 prefix-list.
                   1306:   
                   1307:   ! zebra-0.8x
                   1308:   ipv6 prefix-list 6bone-filter seq 5 permit 3ffe::/17 le 24 ge 24
                   1309:   ipv6 prefix-list 6bone-filter seq 10 permit 3ffe:8000::/17 le 28 ge 28
                   1310:   ipv6 prefix-list 6bone-filter seq 12 deny 3ffe::/16
                   1311:   ipv6 prefix-list 6bone-filter seq 15 permit 2000::/3 le 16 ge 16
                   1312:   ipv6 prefix-list 6bone-filter seq 20 permit 2001::/16 le 35 ge 35
                   1313:   ipv6 prefix-list 6bone-filter seq 30 deny any
                   1314:   !
                   1315: 
                   1316: * RIP configuration
                   1317: 
                   1318:   If you want to filter only default route (0.0.0.0/0) and permit other
                   1319:   routes, it was hard to do that.  Now `ip prefix-list' can be used for
                   1320:   RIP route filtering.
                   1321:   
                   1322:   New statement:
                   1323:   
                   1324:   `distribute-list prefix PLIST_NAME (in|out) IFNAME'
                   1325:   
                   1326:   is added to ripd.  So you can configure on eth0 interface accept all
                   1327:   routes other than default routes.
                   1328:   
                   1329:   !
                   1330:   router rip
                   1331:    distribute-list prefix filter-default in eth0
                   1332:   !
                   1333:   ip prefix-list filter-default deny 0.0.0.0/0 le 0
                   1334:   ip prefix-list filter-default permit any
                   1335:   !
                   1336: 
                   1337: * RIPng configuration
                   1338: 
                   1339:   Same change is done for ripngd.  You can use `ipv6 prefix-list' for
                   1340:   filtering.
                   1341:   
                   1342:   !
                   1343:   router ripng
                   1344:    distribute-list prefix filter-default in eth0
                   1345:   !
                   1346:   ipv6 prefix-list filter-default deny ::/0 le 0
                   1347:   ipv6 prefix-list filter-default permit any
                   1348:   !
                   1349: 
                   1350: * BGP configuration
                   1351: 
                   1352:   So far, Multiprotocol Extensions for BGP-4 (RFC2283) configuration is
                   1353:   done with traditional IPv4 peering statement like blow.
                   1354:   
                   1355:   !
                   1356:   router bgp 7675
                   1357:    neighbor 3ffe:506::1 remote-as 2500
                   1358:    neighbor 3ffe:506::1 prefix-list 6bone-filter out
                   1359:   !
                   1360:   
                   1361:   For separating configuration IPv4 and IPv6, and for retaining Cisco
                   1362:   configuration compatibility, now IPv6 configuration is done by IPv6
                   1363:   specific statement.  IPv6 BGP configuration is done by statement which
                   1364:   start from `ipv6 bgp'.
                   1365:   
                   1366:   !
                   1367:   router bgp 7675
                   1368:   !
                   1369:   ipv6 bgp neighbor 3ffe:506::1 remote-as 2500
                   1370:   ipv6 bgp neighbor 3ffe:506::1 prefix-list 6bone-filter out
                   1371:   !
                   1372:   
                   1373:   At the same time some IPv6 specific commands are deleted from IPv4
                   1374:   configuration.
                   1375:   
                   1376:   o redistribute ripng
                   1377:   o redistribute ospf6
                   1378:   o neighbor PEER version BGP_VERSION
                   1379:   o neighbor PEER interface IFNAME
                   1380:   
                   1381:   Those commands are only accepted as like below.
                   1382:   
                   1383:   o ipv6 bgp redistribute ripng
                   1384:   o ipv6 bgp redistribute ospf6
                   1385:   o ipv6 bgp neighbor PEER version BGP_VERSION
                   1386:   o ipv6 bgp neighbor PEER interface IFNAME
                   1387:   
                   1388:   And below new commands are added.
                   1389:   
                   1390:   o ipv6 bgp network IPV6_PREFIX
                   1391:   o ipv6 bgp redistribute static
                   1392:   o ipv6 bgp redistribute connected
                   1393:   o ipv6 bgp neighbor PEER remote-as <1-65535> [passive]
                   1394:   o ipv6 bgp neighbor PEER ebgp-multihop [TTL]
                   1395:   o ipv6 bgp neighbor PEER description DESCRIPTION
                   1396:   o ipv6 bgp neighbor PEER shutdown
                   1397:   o ipv6 bgp neighbor PEER route-reflector-client
                   1398:   o ipv6 bgp neighbor PEER update-source IFNAME
                   1399:   o ipv6 bgp neighbor PEER next-hop-self
                   1400:   o ipv6 bgp neighbor PEER timers holdtime <0-65535>
                   1401:   o ipv6 bgp neighbor PEER timers keepalive <0-65535>
                   1402:   o ipv6 bgp neighbor PEER send-community
                   1403:   o ipv6 bgp neighbor PEER weight <0-65535>
                   1404:   o ipv6 bgp neighbor PEER default-originate
                   1405:   o ipv6 bgp neighbor PEER filter-list FILTER_LIST_NAME (in|out)
                   1406:   o ipv6 bgp neighbor PEER prefix-list PREFIX_LIST_NAME (in|out)
                   1407:   o ipv6 bgp neighbor PEER distribute-list AS_LIST_NAME (in|out)
                   1408:   o ipv6 bgp neighbor PEER route-map ROUTE_MAP_NAME (in|out)
                   1409:   
                   1410:   And some utility commands are introduced.
                   1411:   
                   1412:   o clear ipv6 bgp [PEER]
                   1413:   o show ipv6 bgp neighbors [PEER]
                   1414:   o show ipv6 bgp summary
                   1415:   
                   1416:   I hope these changes are easy to understand for current Zebra users...
                   1417: 
                   1418: * To restrict connection to VTY interface.
                   1419: 
                   1420:   It used to be both IPv4 and IPv6 filter can be specified with one
                   1421:   access-list.  Then the access-list can be appried to VTY interface
                   1422:   with `access-class' stetement in `line vty' node.  Below is example in
                   1423:   zebra-0.7x.
                   1424:   
                   1425:   !
                   1426:   access-list local-only permit 127.0.0.1/32
                   1427:   access-list local-only permit ::1/128
                   1428:   access-list local-only deny any
                   1429:   !
                   1430:   line vty
                   1431:    access-class local-only
                   1432:   !
                   1433:   
                   1434:   Now IPv4 and IPv6 filter have each name space.  It is not possible to
                   1435:   specify IPv4 and IPv6 filter with one access-list.  For setting IPv6
                   1436:   access-list in `line vty', `ipv6 access-class' statement is
                   1437:   introduced.  Let me show the configuration in zebra-0.8x.
                   1438:   
                   1439:   !
                   1440:   access-list local-only permit 127.0.0.1/32
                   1441:   access-list local-only deny any
                   1442:   !
                   1443:   ipv6 access-list local-only permit ::1/128
                   1444:   ipv6 access-list local-only dny any
                   1445:   !
                   1446:   line vty
                   1447:    access-class local-only
                   1448:    ipv6 access-class local-only
                   1449:   !
                   1450: 
                   1451: * route-map
                   1452: 
                   1453:   New IPv6 related route-map match commands are added.
                   1454:   
                   1455:   o match ipv6 address
                   1456:   o match ipv6 next-hop
                   1457:   
                   1458:   Please change your configuration if you use IP match statement for
                   1459:   IPv6 route.
                   1460:   
                   1461:   zebra-0.7x config
                   1462:   =================
                   1463:   !
                   1464:   access-list all permit any
                   1465:   !
                   1466:   route-map set-nexthop permit 10
                   1467:    match ip address all
                   1468:    set ipv6 next-hop global 3ffe:506::1
                   1469:    set ipv6 next-hop local fe80::cbb5:591a
                   1470:   !
                   1471:   
                   1472:   zebra-0.8x config
                   1473:   =================
                   1474:   !
                   1475:   ipv6 access-list all permit any
                   1476:   !
                   1477:   route-map set-nexthop permit 10
                   1478:    match ipv6 address all
                   1479:    set ipv6 next-hop global 3ffe:506::1
                   1480:    set ipv6 next-hop local fe80::cbb5:591a
                   1481:   !
                   1482: 
                   1483: * zebra connection
                   1484: 
                   1485:   Protocol daemon such as ripd, bgpd, ospfd will reconnect zebra daemon
                   1486:   when the connection fail.  Those daemons try to connect zebra every 10
                   1487:   seconds first three trial, then the interval changed to 60 seconds.
                   1488:   After all, if ten connections are fail, protocol daemon give up the
                   1489:   connection to the zebra daemon.
                   1490: 
                   1491: * SNMP support (is not yet finished)
                   1492: 
                   1493:   Zebra uses SMUX protocol (RFC1227) for making communication with SNMP
                   1494:   agent.  Currently lib/smux.c can be compiled only with ucd-snmp-4.0.1
                   1495:   and http://ucd-snmp.ucdavis.edu/patches/012.patch.  It can not be
                   1496:   compiled with ucd-snmp-3.6.2.
                   1497:   
                   1498:   After applying the patch to ucd-snmp-4.0.1, please configure it with
                   1499:   SMUX module.
                   1500:   
                   1501:   % configure --with-mib-modules=smux
                   1502:   
                   1503:   After compile & install ucd-snmp-4.0.1, you will need to configure
                   1504:   smuxpeer.  I'm now using below configuration.
                   1505:   
                   1506:   /usr/local/share/snmp/snmpd.conf
                   1507:   ================================
                   1508:   smuxpeer 1.3.6.1.6.3.1 test
                   1509:   
                   1510:   Above 1.3.6.1.6.3.1 and test is temporary configuration which is hard
                   1511:   coded in lib/smux.c. Yes, I know it is bad, I'll change it ASAP.
                   1512: 
                   1513: * HUP signal treatment
                   1514: 
                   1515:   From zebra-0.80, ripd will reload it's configuration file when ripd
                   1516:   receives HUP signal.  Other daemon such as bgpd, ospfd will support
                   1517:   HUP signal treatment soon.
                   1518: 
                   1519: * Changes in zebra-0.79
                   1520: 
                   1521: * Changes in zebra
                   1522: 
                   1523: ** Broadcast address setting on Linux box bug is fixed.
                   1524: 
                   1525: ** Protocol daemon can install connected IPv6 route into the kernel.
                   1526: 
                   1527: ** Now zebra can handle blackhole route.
                   1528: 
                   1529: * Changes in ripd
                   1530: 
                   1531: ** Add route-map feature for RIP protocol.
                   1532: 
                   1533: ** In case of RIP version 2 routing table entry has IPv4 address and
                   1534: netmask pair which host part bit is on, ignore the entry.
                   1535: 
                   1536: * Changes in ripngd
                   1537: 
                   1538: ** Change CMSG_DATA cast from (u_char *) to (int *).  (u_char *) does
                   1539: not work for NetBSD-currnet on SparcStation 10.
                   1540: 
                   1541: * Changes in ospfd
                   1542: 
                   1543: ** MaxAge LSA treatment is added.
                   1544: 
                   1545: ** ABR/ASBR functionality is added.
                   1546: 
                   1547: ** Virtual Link funtionality is added.
                   1548: 
                   1549: ** ABR behaviors IBM/Cisco/Shortcut is added.
                   1550: 
                   1551: * Changes in ospf6d
                   1552: 
                   1553: ** Enclosed KAME specific part with #ifdef #endif
                   1554: 
                   1555: * Changes in zebra-0.78
                   1556: 
                   1557: * Changes in lib
                   1558: 
                   1559: ** SNMP support is started.
                   1560: 
                   1561: ** Now Zebra can work on BSD/OS 4.X.
                   1562: 
                   1563: ** Now Zebra can compiled on vanilla OpenBSD 2.5 but not yet working correcltly.
                   1564: 
                   1565: * Changes in zebra
                   1566: 
                   1567: ** Interface index detection using ioctl() bug is fixed.
                   1568: 
                   1569: ** Interface information protocol is changed.  Now interface
                   1570: addition/deletion and interface's address addition/deletion is
                   1571: separated.
                   1572: 
                   1573: * Changes in bgpd
                   1574: 
                   1575: ** BGP hold timer bug is fixed.
                   1576: 
                   1577: ** BGP keepavlie timer becomes configurable.
                   1578: 
                   1579: * Changes in ripd
                   1580: 
                   1581: ** When making reply to rip's REQUEST message, fill in
                   1582: RIP_METRIC_INFINITY with network byte order using htonl ().
                   1583: 
                   1584: ** Pass host byte order address to IN_CLASSC and IN_CLASSB macro.
                   1585: 
                   1586: * Changes in ospfd
                   1587: 
                   1588: ** LSA flooding works.
                   1589: 
                   1590: ** Fix bug of DD processing.
                   1591: 
                   1592: ** Fix bug of originating router-LSA bug is fixed.
                   1593: 
                   1594: ** LSA structure is changed to support LSA aging.
                   1595: 
                   1596: * Changes in ospf6d
                   1597: 
                   1598: ** `ip6' statement in configuration is changed to `ipv6'.
                   1599: 
                   1600: * Changes in zebra-0.77
                   1601: 
                   1602: * Changes in lib
                   1603: 
                   1604: ** SIGUSR1 reopen logging file.
                   1605: 
                   1606: ** route-map is extended to support multi-protocol routing
                   1607: information.
                   1608: 
                   1609: ** When compiling under GNU libc 2.1 environment don't use inet6-apps.
                   1610: 
                   1611: * Changes in zebra
                   1612: 
                   1613: ** Basic IPv6 router advertisement codes added.  It is not yet usable.
                   1614: 
                   1615: ** Fix IPv6 route addition/deletion bug is fixed.
                   1616: 
                   1617: ** `show ip route A.B.C.D' works
                   1618: 
                   1619: * Changes in bgpd
                   1620: 
                   1621: ** When invalid unfeasible routes length comes, bgpd send notify then
                   1622: continue to process the packet.  Now bgpd stop parsing invalid packet
                   1623: then return to main loop.
                   1624: 
                   1625: ** BGP-4+ withdrawn routes parse bug is fixed.
                   1626: 
                   1627: ** When BGP-4+ information passed to non shared network's peer, trim
                   1628: link-local next-hop information.
                   1629: 
                   1630: ** `no redistribute ROUTE_TYPE' withdraw installed routes from BGP
                   1631: routing information.
                   1632: 
                   1633: ** `show ipv6 route IPV6ADDR' command added.
                   1634: 
                   1635: ** BGP start timer has jitter.
                   1636: 
                   1637: ** Holdtimer configuration bug is fixed.  Now configuration does not
                   1638: show unconfigured hold time value.
                   1639: 
                   1640: * Changes in ripngd
                   1641: 
                   1642: ** Now update timer (default 30 seconds) has +/- 50% jitter value.
                   1643: 
                   1644: ** Add timers basic command.
                   1645: 
                   1646: ** `network' configuration is dynamically reflected.
                   1647: 
                   1648: ** `timers basic <update> <timeout> <garbage>' added.
                   1649: 
                   1650: * Changes in ripd
                   1651: 
                   1652: ** Reconstruct almost codes.
                   1653: 
                   1654: ** `network' configuration is dynamically reflected.
                   1655: 
                   1656: ** RIP timers now conforms to RFC2453.  So user can configure update,
                   1657: timeout, garbage timer.
                   1658: 
                   1659: ** `timers basic <update> <timeout> <garbage>' works.
                   1660: 
                   1661: * Changes in ospfd
                   1662: 
                   1663: ** Bug of originating network LSA is fixed.
                   1664: 
                   1665: ** `no router ospf' core dump bug is fixed.
                   1666: 
                   1667: * Changes in ospf6d
                   1668: 
                   1669: ** Redistribute route works.
                   1670: 
                   1671: * Changes in zebra-0.76
                   1672: 
                   1673: * Changes in lib
                   1674: 
                   1675: ** configure.in Linux IPv6 detection problem is fixed.
                   1676: 
                   1677: ** Include SERVICES file to the distribution
                   1678: 
                   1679: ** Update zebra.texi to zebra-0.76.
                   1680: 
                   1681: * Changes in zebra-0.75
                   1682: 
                   1683: * Changes in lib
                   1684: 
                   1685: ** `termnal length 0' bug is fixed.
                   1686: 
                   1687: * Changes in zebra
                   1688: 
                   1689: ** When zebra starts up, sweep all zebra installed routes.  If -k or
                   1690: --keep_kernel option is specified to zebra dameon.  This function is
                   1691: not performed.
                   1692: 
                   1693: * Changes in ripngd
                   1694: 
                   1695: ** Aggreagte address command supported.  In router ripngd,
                   1696: `aggregate-address IPV6PREFIX' works.
                   1697: 
                   1698: * Changes in bgpd
                   1699: 
                   1700: ** Input route-map's bug which cause segmentation violation is fixed.
                   1701: 
                   1702: ** route-map method improved.
                   1703: 
                   1704: ** BGP-4+ nexthop detection improved.
                   1705: 
                   1706: ** BGP-4+ route re-selection bug is fixed.
                   1707: 
                   1708: ** BGP-4+ iBGP route's nexthop calculation works.
                   1709: 
                   1710: ** After connection Established `show ip bgp neighbor' display BGP TCP
                   1711: connection's source and destination address.
                   1712: 
                   1713: ** In case of BGP-4+ `show ip bgp neighbor' display BGP-4+ global and
                   1714: local nexthop which used for originated route.  This address will be
                   1715: used when `next-hop-self'.
                   1716: 
                   1717: * Changes in ospfd
                   1718: 
                   1719: ** Fix bug of DR election.
                   1720: 
                   1721: ** Set IP precedence field with IPTOS_PREC_INTERNET_CONTROL.
                   1722: 
                   1723: ** Schedule NeighborChange event if NSM status change.
                   1724: 
                   1725: ** Never include a neighbor in Hello packet, when the neighbor goes
                   1726: down.
                   1727: 
                   1728: * Changes in zebra-0.74
                   1729: 
                   1730: * Changes in lib
                   1731: 
                   1732: ** Now `terminal length 0' means no line output control.
                   1733: 
                   1734: ** `line LINES' command deleted.  Instead of this please use `terminal
                   1735: length <0-512>'.
                   1736: 
                   1737: ** `terminal length <0-512>' is each vty specific configuration so it
                   1738: can not be configured in the configuration file.  If you want to
                   1739: configure system wide line control, please use `service
                   1740: terminal-length <0-512>'.  This configuration affects to the all vty
                   1741: interface.
                   1742: 
                   1743: * Changes in zebra
                   1744: 
                   1745: ** Installation of IPv6 route bug is fixed.
                   1746: 
                   1747: * Changes in bgpd
                   1748: 
                   1749: ** Very serious bug of bgp_stop () is fixed. When multiple route to
                   1750: the same destination exist, bgpd try to announce the information to
                   1751: stopped peer.  Then add orphan write thread is added.  This cause
                   1752: many strange behavior of bgpd.
                   1753: 
                   1754: ** Router-id parsing bug is fixed.
                   1755: 
                   1756: ** With BGP-4+ nexthop installation was done with global address but
                   1757: it should be link-local address.  This bug is fixed now.
                   1758: 
                   1759: ** When incoming route-map prepend AS, old AS path remained.  Now bgpd
                   1760: free old AS path.
                   1761: 
                   1762: ** `neighbor PEER weight <0-65535>' command added.
                   1763: 
                   1764: * Changes in ripngd
                   1765: 
                   1766: ** Almost codes are rewritten to conform to RFC2080.
                   1767: 
                   1768: * Changes in ospfd
                   1769: 
                   1770: ** SPF calculation timer is added.  Currently it is set to 30 seconds.
                   1771: 
                   1772: ** SPF calculation works now.
                   1773: 
                   1774: ** OSPF routing table codes are added.
                   1775: 
                   1776: ** OSPF's internal routes installed into the kernel routing table.
                   1777: 
                   1778: ** Now `ospfd' works as non-area, non-external route support OSPF
                   1779: router.
                   1780: 
                   1781: ** Call of log_rotate() is removed.
                   1782: 
                   1783: * Changes in ospf6d
                   1784: 
                   1785: ** LSA data structure is changed.
                   1786: 
                   1787: ** Call of log_rotate() is removed.
                   1788: 
                   1789: * Changes in zebra-0.73
                   1790: 
                   1791: * Changes in lib
                   1792: 
                   1793: ** `config terminal' is changed to `configure terminal'.
                   1794: 
                   1795: ** `terminal length <0-512>' command is added.
                   1796: 
                   1797: ** Variable length argument was specified by `...'.  Now all strings
                   1798: started with character `.' is variable length argument.
                   1799: 
                   1800: * Changes in zebra
                   1801: 
                   1802: ** Internal route (such as iBGP, internal OSPF route) handling works
                   1803: correctly.
                   1804: 
                   1805: ** In interface node, `ipv6 address' and `no ipv6 address' works.
                   1806: 
                   1807: ** Interface's address remain after `no ip address' bug is fixed.
                   1808: 
                   1809: ** Host route such as IPv4 with /32 mask and IPv6 with /128 mask
                   1810: didn't set RTF_GATEWAY even it has gateway.  This bug if fixed now.
                   1811: 
                   1812: * Changes in bgpd
                   1813: 
                   1814: ** `match as-path' argument is used to be specify AS PATH value itself
                   1815: directly (e.g. ^$).  But it is changed to specify `ip as-apth
                   1816: access-list' name.
                   1817: 
                   1818: ** iBGP route handle works without getting error from the kernel.
                   1819: 
                   1820: ** `set aggregator as AS A.B.C.D' command is added to route-map.
                   1821: 
                   1822: ** `set atomic-aggregate' command is added to bgpd's routemap.
                   1823: 
                   1824: ** Announcement of atomic aggregate attribute and aggregator attribute
                   1825: works.
                   1826: 
                   1827: ** `update-source' bug is fixed.
                   1828: 
                   1829: ** When a route learned from eBGP is announced to iBGP, local
                   1830: preference was set to zero.  But now it set to
                   1831: DEFAULT_LOCAL_PREF(100).
                   1832: 
                   1833: * Changes in ripd
                   1834: 
                   1835: ** RIPv1 route filter bug is fixed.
                   1836: 
                   1837: ** Some memory leak is fixed.
                   1838: 
                   1839: * Changes in ospfd
                   1840: 
                   1841: ** Fix bug of DR Election.
                   1842: 
                   1843: ** Fix bug of adjacency forming.
                   1844: 
                   1845: * Changes in ospf6d
                   1846: 
                   1847: ** Clean up logging message.
                   1848: 
                   1849: ** Reflect routing information to zebra daemon.
                   1850: 
                   1851: * Changes in zebra-0.72
                   1852: 
                   1853: * Changes in lib
                   1854: 
                   1855: ** When getsockname return IPv4 mapped IPv6 address.  Convert it to
                   1856: IPv4 address.
                   1857: 
                   1858: * Changes in bgpd
                   1859: 
                   1860: ** Change route-map's next-hop related settings.
                   1861: 
                   1862: set ip nexthop          -> set ip next-hop
                   1863: set ipv6 nexthop global -> set ipv6 next-hop global
                   1864: set ipv6 nexthop local  -> set ipv6 next-hop local
                   1865: 
                   1866: ** Add `next-hop-self' command.
                   1867: 
                   1868: * Changes in ospfd
                   1869: 
                   1870: ** Fix bug of multiple `network area' directive crashes.
                   1871: 
                   1872: * Changes in zebra-0.71
                   1873: 
                   1874: * Changes in lib
                   1875: 
                   1876: ** `log syslog' command is added.
                   1877: 
                   1878: ** Use getaddrinfo function to bind IPv4/IPv6 server socket.
                   1879: 
                   1880: ** `no banner motd' will suppress motd output when user connect to VTY.
                   1881: 
                   1882: ** Bind `quit' command to major nodes.
                   1883: 
                   1884: * Changes in zebra
                   1885: 
                   1886: ** Point-to-point link address handling bug is fixed.
                   1887: 
                   1888: * Changes in bgpd
                   1889: 
                   1890: ** AS path validity check is added.  If malformed AS path is received
                   1891: NOTIFY Malformed AS path is send to the peer.
                   1892: 
                   1893: ** Use getaddrinfo function to bind IPv4/IPv6 server socket.
                   1894: 
                   1895: * Changes in ripd
                   1896: 
                   1897: ** Connected network announcement bug is fixed.
                   1898: 
                   1899: ** `broadcast' command is deleted.
                   1900: 
                   1901: ** `network' command is added.
                   1902: 
                   1903: ** `neighbor' command is added.
                   1904: 
                   1905: ** `redistribute' command is added.
                   1906: 
                   1907: ** `timers basic' command is added.
                   1908: 
                   1909: ** `route' command is added.
                   1910: 
                   1911: * Changes in ripngd
                   1912: 
                   1913: ** Fix metric calculation bug.
                   1914: 
                   1915: * Changes in ospfd
                   1916: 
                   1917: ** Check sum bug is fixed.
                   1918: 
                   1919: * Chanegs in ospf6d
                   1920: 
                   1921: ** Routing table code is rewritten.
                   1922: 
                   1923: * Changes in zebra-0.70
                   1924: 
                   1925: * Changes in zebra
                   1926: 
                   1927: ** Critical routing information base calculation bug check is fixed.
                   1928: 
                   1929: ** zebra ipv4 message is extended to support external/internal route
                   1930: flavor.
                   1931: 
                   1932: ** Now if internal route doesn't has direct connected nexthop, then
                   1933: nexthop is calculated by looking up IGP routing table.
                   1934: 
                   1935: * Changes in bgpd
                   1936: 
                   1937: ** `neighbor PEER update-source IFNAME' command added as ALIAS to
                   1938: `neighbor PEER interface IFNAME'.
                   1939: 
                   1940: * Changes in ospfd
                   1941: 
                   1942: ** DD null pointer bug is fixed.
                   1943: 
                   1944: * Changes in zebra-0.69
                   1945: 
                   1946: * Changes in zebra
                   1947: 
                   1948: ** zebra redistirbution supports dynamic notification of the route
                   1949: change.  If you add static route while running zebra, it will be
                   1950: reflected to other protocol daemon which set `redistribute static'.
                   1951: 
                   1952: ** If static route installation is failed due to the error.  The
                   1953: static route is not added to the configuration and zebra routing
                   1954: table.
                   1955: 
                   1956: ** zebra sets forwarding flag to on when it starts up.
                   1957: 
                   1958: ** `no ip forwarding' turn off IPv4 forwarding.
                   1959: 
                   1960: ** `no ipv6 forwarding' turn off IPv6 forwarding.
                   1961: 
                   1962: ** Change `show ipforward' command to `show ip forwarding'.
                   1963: 
                   1964: ** Change `show ipv6forward' command to `show ipv6 forwarding'.
                   1965: 
                   1966: ** `ip route A.B.C.D/M INTERFACE' works.  So you can set `ip route
                   1967: 10.0.0.0/8 eth0'.
                   1968: 
                   1969: * Changes in bgpd
                   1970: 
                   1971: ** `neighbor PEER send-community' command is added.  If the option is
                   1972: set, bgpd will send community attribute to the peer.
                   1973: 
                   1974: ** When a BGP route has no-export community attribute and
                   1975: send-community is set to the peer, the route is not announced to the
                   1976: peer.
                   1977: 
                   1978: * Changes in ripngd
                   1979: 
                   1980: ** When ripngd terminates, delete all installed route.
                   1981: 
                   1982: ** `redistribute static', `redistribute connected' works.
                   1983: 
                   1984: ** Change `debug ripng event' to `debug ripng events'.
                   1985: 
                   1986: ** Change `show debug ripng' to `show debugging ripng'.
                   1987: 
                   1988: ** Bug of static route deletion is fixed.
                   1989: 
                   1990: * Changes in ospfd
                   1991: 
                   1992: ** LS request and LS update can be send and received.
                   1993: 
                   1994: * Changes in zebra-0.68
                   1995: 
                   1996: * Changes in lib
                   1997: 
                   1998: ** DEFUN() is extended to support (a|b|c) statement.
                   1999: 
                   2000: ** Input buffer overflow bug is fixed.
                   2001: 
                   2002: * Changes in bgpd
                   2003: 
                   2004: ** `ip community-list' is added.
                   2005: 
                   2006: ** set community and match community is added to route-map statement.
                   2007: 
                   2008: ** aggregate-address A.B.C.D/M partly works.  Now it works only
                   2009: summary-only mode.
                   2010: 
                   2011: * Changes in zebra
                   2012: 
                   2013: ** IPv6 network address delete bug is fixed.
                   2014: 
                   2015: * Changes in ospfd
                   2016: 
                   2017: ** DR election bug fixed.
                   2018: 
                   2019: ** Now Database Description can be send or received.
                   2020: 
                   2021: ** Neighbor State Machine goes to Full state.
                   2022: 
                   2023: * Changes in ospf6d
                   2024: 
                   2025: ** router zebra related bug is fixed.
                   2026: 
                   2027: * Changes in zebra-0.67
                   2028: 
                   2029: * Changes in lib
                   2030: 
                   2031: ** `service password-encryption' is added for encrypted password.
                   2032: 
                   2033: * Changes in bgpd
                   2034: 
                   2035: ** `set as-path prepend ASPATH' is added to route-map command.
                   2036: 
                   2037: ** `set weight WEIGHT' is added to route-map command.
                   2038: 
                   2039: ** `no set ipv6 nexthop global' and `no set ipv6 nexthop local'
                   2040: command is added to route-map.
                   2041: 
                   2042: ** `neighbor IP_ADDR version BGP_VERSION' command's BGP_VERSION
                   2043: argument changed.
                   2044: 
                   2045: Old               New
                   2046: =====================
                   2047: bgp4              4
                   2048: bgp4+             4+
                   2049: bgp4+-draft-00    4-
                   2050: =====================
                   2051: 
                   2052: If you want to peer with old draft version of BGP-4+, please configure
                   2053: like below:
                   2054: 
                   2055: router bgp ASN
                   2056:  neighbor PEER version 4-
                   2057: 
                   2058: ** Some AS path isn't correctly compared during route selection.  Now
                   2059: it is fixed.
                   2060: 
                   2061: * Changes in ospfd
                   2062: 
                   2063: ** `router zebra' is default behavior.
                   2064: 
                   2065: * Changes in ospf6d
                   2066: 
                   2067: ** `router zebra' is default behavior.
                   2068: 
                   2069: * Changes in zebra-0.66
                   2070: 
                   2071: * Changes in zebra
                   2072: 
                   2073: ** When other daemon such as gated install routes into the kernel then
                   2074: zebra blocks.  This is only occur with netlink socket.  Now socket is
                   2075: set as NONBLOCKING and problem is fixed.  Reported and fixed by
                   2076: Patrick Koppen <koppen@rhrk.uni-kl.de>
                   2077: 
                   2078: * Changes in bgpd
                   2079: 
                   2080: ** Now `router zebra' is not needed to insert BGP routes into the
                   2081: kernel.  It is default behavior.  If you don't want to install the BGP
                   2082: routes to the kernel, please configure like below:
                   2083: 
                   2084: !
                   2085: router zebra
                   2086:  no redistribute bgp
                   2087: !
                   2088: 
                   2089: ** redistribute connected works.
                   2090: 
                   2091: ** redistribute static now filter local loopback routes and link local
                   2092: network.
                   2093: 
                   2094: * Changes in ripd
                   2095: 
                   2096: ** Some network check is added.  Patch is done by Carlos Alberto
                   2097: Barcenilla <barce@frlp.utn.edu.ar>
                   2098: 
                   2099: * Changes in ripngd
                   2100: 
                   2101: ** Sometimes ripngd install wrong nexthop into the kernel.  This bug
                   2102: is fixed now.
                   2103: 
                   2104: ** Now `router zebra' is not needed to insert RIPng routes into the
                   2105: kernel.  It is default behavior. If you don't want to install the BGP
                   2106: routes to the kernel, please configure like below:
                   2107: 
                   2108: !
                   2109: router zebra
                   2110:  no redistribute ripng
                   2111: !
                   2112: 
                   2113: * Changes in zebra-0.65
                   2114: 
                   2115: * Changes in lib
                   2116: 
                   2117: ** `C-c' changes current node to ENABLE_NODE.  Previously it doesn't.
                   2118: 
                   2119: ** In ENABLE_NODE, `exit' command close vty connection.
                   2120: 
                   2121: ** `service advanced-vty' enable advanced vty function.  If this
                   2122: service is specified one can directly connect to ENABLE_NODE when
                   2123: enable password is not set.
                   2124: 
                   2125: ** `lines LINES' command is added by Stephen R. van den Berg
                   2126: <srb@cuci.nl>.
                   2127: 
                   2128: * Changes in zebra
                   2129: 
                   2130: ** Basic Linux policy based routing table support is added by Stephen
                   2131: R. van den Berg <srb@cuci.nl>.
                   2132: 
                   2133: * Changes in bgpd
                   2134: 
                   2135: ** route-map command is improved:
                   2136:   `match ip next-hop': New command.
                   2137:   `match metric': New command.
                   2138:   `set metric': Doc fixed.
                   2139:   `set local-preference': DEFUN added.
                   2140: 
                   2141: * Changes in ripd
                   2142: 
                   2143: ** Check of announced network is added.  Now multicast address is
                   2144: filtered.  Reported by Carlos Alberto Barcenilla
                   2145: <barce@frlp.utn.edu.ar>
                   2146: 
                   2147: ** Check of network 127 is added.  Reported by Carlos Alberto
                   2148: Barcenilla <barce@frlp.utn.edu.ar>
                   2149: 
                   2150: * Changes in ripngd
                   2151: 
                   2152: ** Aging route bug is fixed.
                   2153: 
                   2154: ** `router zebra' semantics changed.  ripngd automatically connect to
                   2155: zebra.
                   2156: 
                   2157: * Changes in ospfd
                   2158: 
                   2159: ** `no router ospf' works.
                   2160: 
                   2161: * Changes in ospf6d
                   2162: 
                   2163: ** Bug fix about network vertex.
                   2164: 
                   2165: * Changes in zebra-0.64.1.
                   2166: 
                   2167: This is bug fix release.
                   2168: 
                   2169: * Changes in lib
                   2170: 
                   2171: ** Add check of sin6_scope_id in struct sockaddr_in6.  For compilation
                   2172: on implementation which doesn't have sin6_scope_id.  Reported by Wim
                   2173: Biemolt <Wim.Biemolt@ipv6.surfnet.nl>.
                   2174: 
                   2175: * Changes in zebra
                   2176: 
                   2177: ** Fix bug of display BGP routes as "O" instead of "B".  Reported by
                   2178: "William F. Maton" <wmaton@enterprise.ic.gc.ca> and Dave Hartzell
                   2179: <hartzell@greatplains.net>.
                   2180: 
                   2181: * Changes in bgpd
                   2182: 
                   2183: ** `no network IPV6_NETWORK' statement and `no neighbor IP_ADDR timers
                   2184: holdtime [TIMER]' statement doesn't work. Reported by Georg Hitsch
                   2185: <georg@atnet.at>.  Now both statement work.
                   2186: 
                   2187: * Changes in ospfd
                   2188: 
                   2189: ** Last interface is not updated by ospf_if_update().  Reported by
                   2190: Dave Hartzell <hartzell@greatplains.net>.
                   2191: 
                   2192: * Changes in ospf6d
                   2193: 
                   2194: ** Byte order of ifid is changed.  Due to this change, this code will
                   2195: not work with previous version, sorry.
                   2196: 
                   2197: ** Fix `show ip route' route type mismatch.
                   2198: 
                   2199: ** Fix bug of no network IPV6_NETWORK.
                   2200: 
                   2201: ** Important bug fix about intra-area-prefix-lsa.
                   2202: 
                   2203: * Changes in zebra-0.64.
                   2204: 
                   2205: * Changes in lib
                   2206: 
                   2207: ** prefix-list based filtering routine is added.  Currently used in
                   2208: bgpd but it will be in other daemons.
                   2209: 
                   2210: * Changes in bgpd
                   2211: 
                   2212: ** `no router bgp' works.  But network statement is not cleared.  This
                   2213: should be fixed in next beta.
                   2214: 
                   2215: ** Route reflector related statement is added.
                   2216: 
                   2217:   router bgp ASN
                   2218:     bgp cluster-id a.b.c.d
                   2219:     neighbor a.b.c.d route-reflector-client
                   2220: 
                   2221:   is added.
                   2222: 
                   2223: ** Prefix list based filtering is added.
                   2224: 
                   2225:   router bgp ASN
                   2226:     neighbor a.b.c.d prefix-list PREFIX_LIST_NAME
                   2227: 
                   2228: ** Prefix list based routing display works.
                   2229: 
                   2230:   show ip bgp prefix-list PREFIX_LIST_NAME
                   2231: 
                   2232: * Changes in ripd
                   2233: 
                   2234: ** Fix route metric check bug.  Reported from Mr. Carlos Alberto
                   2235: Barcenilla.
                   2236: 
                   2237: * Changes in ospf6d
                   2238: 
                   2239: ** There are many changes.  If you have interested in ospf6d please
                   2240: visit ospf6d/README file.
                   2241: 
                   2242: * Changes in zebra-0.63 first beta package.
                   2243: 
                   2244: * Changes in lib
                   2245: 
                   2246: ** `copy running-config stgartup-config' command is added.
                   2247: 
                   2248: ** prefix length check bug is fixed.  Thanks Marlos Barcenilla
                   2249: <barce@frip.utn.edu.ar>.
                   2250: 
                   2251: * Changes in ospfd
                   2252: 
                   2253: ** DR and BDR election works.
                   2254: 
                   2255: ** OSPF Hello simple authentication works.
                   2256: 
                   2257: * Changes in ospf6d
                   2258: 
                   2259: ** Now ospf6d can be compiled on both Linux and *BSD system.
                   2260: 
                   2261: * Changes in zebra-19990420 snapshot
                   2262: 
                   2263: ** `make dist' at top directory works now.
                   2264: 
                   2265: * Changes in lib
                   2266: 
                   2267: ** VTY has now access-class to restrict remote connection.
                   2268: Implemented by Alex Bligh <amb@gxn.net>.
                   2269: 
                   2270: !
                   2271: line vty
                   2272:   access-class ACCESS-LIST-NAME
                   2273: !
                   2274: 
                   2275: ** `show version' command added.  Implemented by Carlos Alberto
                   2276: Barcenilla <barce@frlp.utn.edu.ar>
                   2277: 
                   2278: * Changes in zebra
                   2279: 
                   2280: ** `ip address' command on *BSD bug is fixed.
                   2281: 
                   2282: ** `no ip address' works now for IPv4 address.
                   2283: 
                   2284: ** Now `write terminal' display `ip address' configuration.
                   2285: 
                   2286: * Changes in bgpd
                   2287: 
                   2288: ** Redistribute static works now.  Please run both zebra and bgpd.
                   2289: bgpd.conf should be like this:
                   2290: 
                   2291: !
                   2292: router zebra
                   2293: !
                   2294: router bgp ASN
                   2295:   redisitribute static
                   2296: !
                   2297: 
                   2298: * Changes in guile
                   2299: 
                   2300: ** configure --enable-guile turns on zebra-guile build.
                   2301: 
                   2302: ** (router-bgp ASN) allocates real bgp structre.
                   2303: 
                   2304: * Changes in zebra-19990416 snapshot
                   2305: 
                   2306: ** Set version to 0.60 for preparation of beta release.
                   2307: 
                   2308: ** New directory guile is added for linking with guile interpreter.
                   2309: 
                   2310: * Changes in zebra
                   2311: 
                   2312: ** On GNU/Linux Kernel 2.2.x (with netlink support), zebra detects
                   2313: asynchronous routing updates.  *BSD support is not yet finished.
                   2314: 
                   2315: * Changes in bgpd
                   2316: 
                   2317: ** `show ip bgp regexp ASPATH_REGEX' uses CISCO like regular expression 
                   2318: instead of RPSL like regular expression.  I'm planing to provide RPSL
                   2319: like regular expression with `show ip bgp rpsl' or something.
                   2320: 
                   2321: * Changes in lib
                   2322: 
                   2323: ** Press '?' at variable mandatory argument, vty prints nothing.  Now
                   2324: vty outputs description about the argument.  Fixed by Alex Bligh
                   2325: <amb@gxn.net>
                   2326: 
                   2327: ** buffer.c has some ugly bugs.  Due to the bug, vty interface hangs
                   2328: when large output date exists.  This bug is fixed. Reported by Alex
                   2329: Bligh <amb@gxn.net>.
                   2330: 
                   2331: * Changes in ospfd
                   2332: 
                   2333: ** DR and BDR information is shown by `show ip ospf interface' command.
                   2334: 
                   2335: * Changes in zebra-19990408 snapshot
                   2336: 
                   2337: * Changes in bgpd
                   2338: 
                   2339: ** Old BGP-4+ specification (described in old draft) treatment bug is
                   2340: fixed.  It seems that mrtd uses this format as default.  So if you
                   2341: have problem peering with mrtd and want to use old draft format please
                   2342: use version statement like this.
                   2343: 
                   2344: neighbor PEER_ADDRESS remote-as ASN
                   2345: neighbor PEER_ADDRESS version bgp4+-draft-00
                   2346: 
                   2347: ** When AS path is epmty (routes generated by bgpd), SEGV is occur
                   2348: when announce the routes to eBGP peer.  Reported by
                   2349: kad@gibson.skif.net.
                   2350: 
                   2351: ** ip as-path access-list command is added.
                   2352: 
                   2353: ** neighbor PEER_ADDRESS filter-list AS_LIST [in|out] command is added.
                   2354: 
                   2355: ** neighbor PEER_ADDRESS timers holdtimer TIMER command is added.
                   2356: 
                   2357: * Changes in all daemons
                   2358: 
                   2359: ** With KAME stack, terminal interface is now bind AF_INET socket
                   2360: instead of AF_INET6 one.
                   2361: 
                   2362: * Changes in zebra-19990403 snapshot
                   2363: 
                   2364: * Changes in bgpd
                   2365: 
                   2366: ** When bgpd has 'router zebra', bgpd automatically select it's router
                   2367: ID as most highest interface's IP Address.
                   2368: 
                   2369: ** When AS path is empty (in case of iBGP), it doesn't include any AS
                   2370: segment.  This change is for announcement to gated under iBGP.
                   2371: 
                   2372: * Changes in ospfd
                   2373: 
                   2374: ** OSPF hello packet send/receive works.
                   2375: 
                   2376: * Changes in ospf6d
                   2377: 
                   2378: ** Yasuhiro Ohara's ospf6d codes is imported.  It is under development
                   2379: and can't be compiled on any platform.
                   2380: 
                   2381: * Changes in zebra-19990327 snapshot
                   2382: 
                   2383: * Changes in bgpd
                   2384: 
                   2385: ** When BGP-4+ connection is done by IPv6 link-local address.  One
                   2386: have to specify interface index for the connection.  So I've added
                   2387: interface statement to the neighbor commmand.  Please specify
                   2388: interface name for getting interface index like below.  This statement
                   2389: only works on GNU/Linux.  I'll support BSD ASAP.
                   2390: 
                   2391: router bgp 7675
                   2392:  neighbor fe80::200:f8ff:fe01:5fd3 remote-as 2500
                   2393:  neighbor fe80::200:f8ff:fe01:5fd3 interface sit3
                   2394: 
                   2395: ** For disable BGP peering `shutdown' command is added.
                   2396: 
                   2397: router bgp 7675
                   2398:  neighbor 10.0.0.1 shutdown
                   2399: 
                   2400: ** `description' command is added to neighbor statement.
                   2401: 
                   2402: router bgp 7675
                   2403:  neighbor 10.0.0.1 description peering with Norway.
                   2404: 
                   2405: ** `show ip bgp regexp AS-REGEXP' works again.
                   2406: 
                   2407: show ip bgp regexp AS7675
                   2408: 
                   2409: will show routes which include AS7675.
                   2410: 
                   2411: ** When a route which is made from `network' statement is send to
                   2412: neighbor.  Set it's nexthop to self.  So 10.0.0.0/8 is announced to
                   2413: the peer A with source address 192.168.1.1.  The routes nexthop is set
                   2414: to 192.168.1.1.
                   2415: 
                   2416: * Changes in zebra
                   2417: 
                   2418: ** In zebra/rtread_sysctl.c, function rtm_read() may overrun allocated
                   2419: buffer when the address family is not supported and the length is big
                   2420: (i.e link address).  Reported Achim Patzner <ap@bnc.net>.
                   2421: 
                   2422: * Changes in ospfd
                   2423: 
                   2424: ** Now ospfd receive OSPF packet.
                   2425: 
                   2426: * Changes in zebra-19990319 snapshot
                   2427: 
                   2428: * Changes in configuration and libraries
                   2429: 
                   2430: ** User can disable IPv6 feature and/or pthread feature by configure
                   2431:    option.
                   2432: 
                   2433:   To disable IPv6:    configure --disable-ipv6
                   2434:   To disable pthread: configure --disable-pthread
                   2435: 
                   2436: ** User can disable specified daemon by configure option.
                   2437: 
                   2438:   Don't make zebra:  configure --disable-zebra
                   2439:   Don't make bgpd:   configure --disable-bgpd
                   2440:   Don't make ripd:   configure --disable-ripd
                   2441:   Don't make ripngd: configure --disable-ripngd
                   2442:   Don't make ospfd:  configure --disable-ospfd
                   2443:   Don't make ospf6d: configure --disable-ospf6d
                   2444: 
                   2445: ** Sample configuration files are installed as 600 file flag.
                   2446:    Suggested by Jeroen Ruigrok/Asmodai <asmodai@wxs.nl>.
                   2447: 
                   2448: ** syslog logging feature is added by Peter Galbavy
                   2449:    <Peter.Galbavy@knowledge.com>
                   2450: 
                   2451: ** Inclusion of standard header files is reworked by Peter Galbavy
                   2452:    <Peter.Galbavy@knowledge.com>
                   2453: 
                   2454: ** Change description from GNU/Linux 2.1.X to GNU/Linux 2.2.X
                   2455: 
                   2456: ** If daemon function exists in standard C library use it.
                   2457: 
                   2458: ** To generate configure script we upgrade autoconf to 2.13.  To
                   2459: generate Makefile.in we upgrade automake to 1.4.
                   2460: 
                   2461: ** doc/texinfo.tex is added to distribution.
                   2462: 
                   2463: ** Update ports/pkg/DESCR description.
                   2464: 
                   2465: ** Update doc/zebra.texi.
                   2466: 
                   2467: ** logfile FILENAME statement deleted.  Instead of that please use log
                   2468: file FILENAME.
                   2469: 
                   2470: * Changes in zebra
                   2471: 
                   2472: * Changes in bgpd
                   2473: 
                   2474: ** Communication between zebra and bgpd works now.  So if there is
                   2475:    `router zebra' line in bgpd.conf, selected route is installed
                   2476:    into kernel routing table.
                   2477: 
                   2478: ** Delete all routes which inserted by bgpd when bgpd dies.  If you
                   2479: want to retain routes even bgpd dies please specify [-r|--retain]
                   2480: option to bgpd.
                   2481: 
                   2482: ** BGP announcement code is reworked.  Now bgpd announce selected
                   2483:    routes to other peer.
                   2484: 
                   2485: ** All output bgp packet is buffered.  It's written to the socket when
                   2486:    it gets ready.
                   2487: 
                   2488: ** Output route-map works now.  You can specify output route-map by:
                   2489: 
                   2490:    neighbor IP_ADDR route-map ROUTE_MAP_NAME out
                   2491: 
                   2492: ** New route-map command added.
                   2493: 
                   2494:    set ip nexthop IP_ADDR
                   2495:    set ipv6 nexthop global IP_ADDR
                   2496: 
                   2497: ** Fix bug about unlock of the route_node structure.
                   2498: 
                   2499: ** BGP-4+ support is added.  bgpd can listen and speak BGP-4+ packet
                   2500: specified in RFC2283. You can view IPv6 bgp table by: `show ipv6 bgp'.
                   2501: 
                   2502: ** Meny packet overflow check is added.
                   2503: 
                   2504: * Changes in ripd
                   2505: 
                   2506: * Changes in ripngd
                   2507: 
                   2508: * Changes in ospfd
                   2509: 
                   2510: ** ospfd work is started by Toshiaki Takada <takada@zebra.org>.  Now
                   2511: several files are included in ospfd directory.
                   2512: 
                   2513: ** ospf6d codes are merged from Yasuhiro Ohara <yasu@sfc.wide.ad.jp>'s
                   2514: ospfd work.  Now codes are located in ospf6d directory.
                   2515: 
                   2516: 
                   2517: Local variables:
                   2518: mode: outline
                   2519: paragraph-separate: "[         ]*$"
                   2520: end:

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