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Annotation of elwix/config/etc/default/dhcpd.conf.sample, revision 1.1.1.1

1.1       misho       1: # dhcpd.conf
                      2: #
                      3: # Sample configuration file for ISC dhcpd
                      4: #
                      5: 
                      6: # option definitions common to all supported networks...
                      7: option domain-name "example.org";
                      8: option domain-name-servers ns1.example.org, ns2.example.org;
                      9: 
                     10: default-lease-time 600;
                     11: max-lease-time 7200;
                     12: 
                     13: # Use this to enble / disable dynamic dns updates globally.
                     14: #ddns-update-style none;
                     15: 
                     16: # If this DHCP server is the official DHCP server for the local
                     17: # network, the authoritative directive should be uncommented.
                     18: #authoritative;
                     19: 
                     20: # ad-hoc DNS update scheme - set to "none" to disable dynamic DNS updates.
                     21: ddns-update-style ad-hoc;
                     22: 
                     23: # Use this to send dhcp log messages to a different log file (you also
                     24: # have to hack syslog.conf to complete the redirection).
                     25: log-facility local7;
                     26: 
                     27: # No service will be given on this subnet, but declaring it helps the 
                     28: # DHCP server to understand the network topology.
                     29: 
                     30: subnet 10.152.187.0 netmask 255.255.255.0 {
                     31: }
                     32: 
                     33: # This is a very basic subnet declaration.
                     34: 
                     35: subnet 10.254.239.0 netmask 255.255.255.224 {
                     36:   range 10.254.239.10 10.254.239.20;
                     37:   option routers rtr-239-0-1.example.org, rtr-239-0-2.example.org;
                     38: }
                     39: 
                     40: # This declaration allows BOOTP clients to get dynamic addresses,
                     41: # which we don't really recommend.
                     42: 
                     43: subnet 10.254.239.32 netmask 255.255.255.224 {
                     44:   range dynamic-bootp 10.254.239.40 10.254.239.60;
                     45:   option broadcast-address 10.254.239.31;
                     46:   option routers rtr-239-32-1.example.org;
                     47: }
                     48: 
                     49: # A slightly different configuration for an internal subnet.
                     50: subnet 10.5.5.0 netmask 255.255.255.224 {
                     51:   range 10.5.5.26 10.5.5.30;
                     52:   option domain-name-servers ns1.internal.example.org;
                     53:   option domain-name "internal.example.org";
                     54:   option routers 10.5.5.1;
                     55:   option broadcast-address 10.5.5.31;
                     56:   default-lease-time 600;
                     57:   max-lease-time 7200;
                     58: }
                     59: 
                     60: # Hosts which require special configuration options can be listed in
                     61: # host statements.   If no address is specified, the address will be
                     62: # allocated dynamically (if possible), but the host-specific information
                     63: # will still come from the host declaration.
                     64: 
                     65: host passacaglia {
                     66:   hardware ethernet 0:0:c0:5d:bd:95;
                     67:   filename "vmunix.passacaglia";
                     68:   server-name "toccata.fugue.com";
                     69: }
                     70: 
                     71: # Fixed IP addresses can also be specified for hosts.   These addresses
                     72: # should not also be listed as being available for dynamic assignment.
                     73: # Hosts for which fixed IP addresses have been specified can boot using
                     74: # BOOTP or DHCP.   Hosts for which no fixed address is specified can only
                     75: # be booted with DHCP, unless there is an address range on the subnet
                     76: # to which a BOOTP client is connected which has the dynamic-bootp flag
                     77: # set.
                     78: host fantasia {
                     79:   hardware ethernet 08:00:07:26:c0:a5;
                     80:   fixed-address fantasia.fugue.com;
                     81: }
                     82: 
                     83: # You can declare a class of clients and then do address allocation
                     84: # based on that.   The example below shows a case where all clients
                     85: # in a certain class get addresses on the 10.17.224/24 subnet, and all
                     86: # other clients get addresses on the 10.0.29/24 subnet.
                     87: 
                     88: class "foo" {
                     89:   match if substring (option vendor-class-identifier, 0, 4) = "SUNW";
                     90: }
                     91: 
                     92: shared-network 224-29 {
                     93:   subnet 10.17.224.0 netmask 255.255.255.0 {
                     94:     option routers rtr-224.example.org;
                     95:   }
                     96:   subnet 10.0.29.0 netmask 255.255.255.0 {
                     97:     option routers rtr-29.example.org;
                     98:   }
                     99:   pool {
                    100:     allow members of "foo";
                    101:     range 10.17.224.10 10.17.224.250;
                    102:   }
                    103:   pool {
                    104:     deny members of "foo";
                    105:     range 10.0.29.10 10.0.29.230;
                    106:   }
                    107: }