Annotation of embedaddon/quagga/doc/ipv6.texi, revision 1.1.1.1
1.1 misho 1: @node IPv6 Support
2: @chapter IPv6 Support
3:
4: Quagga fully supports IPv6 routing. As described so far, Quagga supports
5: RIPng, OSPFv3 and BGP-4+. You can give IPv6 addresses to an interface
6: and configure static IPv6 routing information. Quagga IPv6 also provides
7: automatic address configuration via a feature called @code{address
8: auto configuration}. To do it, the router must send router advertisement
9: messages to the all nodes that exist on the network.
10:
11: @menu
12: * Router Advertisement::
13: @end menu
14:
15: @node Router Advertisement
16: @section Router Advertisement
17:
18: @deffn {Interface Command} {no ipv6 nd suppress-ra} {}
19: Send router advertisment messages.
20: @end deffn
21:
22: @deffn {Interface Command} {ipv6 nd suppress-ra} {}
23: Don't send router advertisment messages.
24: @end deffn
25:
26: @deffn {Interface Command} {ipv6 nd prefix @var{ipv6prefix} [@var{valid-lifetime}] [@var{preferred-lifetime}] [off-link] [no-autoconfig] [router-address]} {}
27: Configuring the IPv6 prefix to include in router advertisements. Several prefix
28: specific optional parameters and flags may follow:
29: @itemize @bullet
30: @item
31: @var{valid-lifetime} - the length of time in seconds during what the prefix is
32: valid for the purpose of on-link determination. Value @var{infinite} represents
33: infinity (i.e. a value of all one bits (@code{0xffffffff})).
34:
35: Range: @code{<0-4294967295>} Default: @code{2592000}
36:
37: @item
38: @var{preferred-lifetime} - the length of time in seconds during what addresses
39: generated from the prefix remain preferred. Value @var{infinite} represents
40: infinity.
41:
42: Range: @code{<0-4294967295>} Default: @code{604800}
43:
44: @item
45: @var{off-link} - indicates that advertisement makes no statement about on-link or
46: off-link properties of the prefix.
47:
48: Default: not set, i.e. this prefix can be used for on-link determination.
49:
50: @item
51: @var{no-autoconfig} - indicates to hosts on the local link that the specified prefix
52: cannot be used for IPv6 autoconfiguration.
53:
54: Default: not set, i.e. prefix can be used for autoconfiguration.
55:
56: @item
57: @var{router-address} - indicates to hosts on the local link that the specified
58: prefix
59: contains a complete IP address by setting R flag.
60:
61: Default: not set, i.e. hosts do not assume a complete IP address is placed.
62: @end itemize
63: @end deffn
64:
65: @deffn {Interface Command} {ipv6 nd ra-interval SECONDS} {}
66: @deffnx {Interface Command} {no ipv6 nd ra-interval} {}
67: The maximum time allowed between sending unsolicited multicast router
68: advertisements from the interface, in seconds. Must be no less than 3 seconds.
69:
70: Default: @code{600}
71: @end deffn
72:
73: @deffn {Interface Command} {ipv6 nd ra-interval msec MILLISECONDS} {}
74: @deffnx {Interface Command} {no ipv6 nd ra-interval msec} {}
75: The maximum time allowed between sending unsolicited multicast router
76: advertisements from the interface, in milliseconds. Must be no less than 30 milliseconds.
77:
78: Default: @code{600000}
79: @end deffn
80: @deffn {Interface Command} {ipv6 nd ra-lifetime SECONDS} {}
81: @deffnx {Interface Command} {no ipv6 nd ra-lifetime} {}
82: The value to be placed in the Router Lifetime field of router advertisements
83: sent from the interface, in seconds. Indicates the usefulness of the router
84: as a default router on this interface. Setting the value to zero indicates
85: that the router should not be considered a default router on this interface.
86: Must be either zero or between value specified with @var{ipv6 nd ra-interval}
87: (or default) and 9000 seconds.
88:
89: Default: @code{1800}
90: @end deffn
91:
92: @deffn {Interface Command} {ipv6 nd reachable-time MILLISECONDS} {}
93: @deffnx {Interface Command} {no ipv6 nd reachable-time} {}
94: The value to be placed in the Reachable Time field in the Router Advertisement
95: messages sent by the router, in milliseconds. The configured time enables the
96: router to detect unavailable neighbors. The value zero means unspecified (by
97: this router). Must be no greater than @code{3,600,000} milliseconds (1 hour).
98:
99: Default: @code{0}
100: @end deffn
101:
102: @deffn {Interface Command} {ipv6 nd managed-config-flag} {}
103: @deffnx {Interface Command} {no ipv6 nd managed-config-flag} {}
104: Set/unset flag in IPv6 router advertisements which indicates to hosts that they
105: should use managed (stateful) protocol for addresses autoconfiguration in
106: addition to any addresses autoconfigured using stateless address
107: autoconfiguration.
108:
109: Default: not set
110: @end deffn
111:
112: @deffn {Interface Command} {ipv6 nd other-config-flag} {}
113: @deffnx {Interface Command} {no ipv6 nd other-config-flag} {}
114: Set/unset flag in IPv6 router advertisements which indicates to hosts that
115: they should use administered (stateful) protocol to obtain autoconfiguration
116: information other than addresses.
117:
118: Default: not set
119: @end deffn
120:
121: @deffn {Interface Command} {ipv6 nd home-agent-config-flag} {}
122: @deffnx {Interface Command} {no ipv6 nd home-agent-config-flag} {}
123: Set/unset flag in IPv6 router advertisements which indicates to hosts that
124: the router acts as a Home Agent and includes a Home Agent Option.
125:
126: Default: not set
127: @end deffn
128:
129: @deffn {Interface Command} {ipv6 nd home-agent-preference} {}
130: @deffnx {Interface Command} {no ipv6 nd home-agent-preference} {}
131: The value to be placed in Home Agent Option, when Home Agent config flag is set,
132: which indicates to hosts Home Agent preference.
133:
134: Default: 0
135: @end deffn
136:
137: @deffn {Interface Command} {ipv6 nd home-agent-lifetime} {}
138: @deffnx {Interface Command} {no ipv6 nd home-agent-lifetime} {}
139: The value to be placed in Home Agent Option, when Home Agent config flag is set,
140: which indicates to hosts Home Agent Lifetime. A value of 0 means to place Router Lifetime value.
141:
142: Default: 0
143: @end deffn
144:
145: @deffn {Interface Command} {ipv6 nd adv-interval-option} {}
146: @deffnx {Interface Command} {no ipv6 nd adv-interval-option} {}
147: Include an Advertisement Interval option which indicates to hosts the maximum time,
148: in milliseconds, between successive unsolicited Router Advertisements.
149:
150: Default: not set
151: @end deffn
152:
153: @deffn {Interface Command} {ipv6 nd router-preference (high|medium|low)} {}
154: @deffnx {Interface Command} {no ipv6 nd router-preference} {}
155: Set default router preference in IPv6 router advertisements per RFC4191.
156:
157: Default: medium
158: @end deffn
159:
160: @example
161: @group
162: interface eth0
163: no ipv6 nd suppress-ra
164: ipv6 nd prefix 2001:0DB8:5009::/64
165: @end group
166: @end example
167:
168: For more information see @cite{RFC2462 (IPv6 Stateless Address Autoconfiguration)}
169: , @cite{RFC2461 (Neighbor Discovery for IP Version 6 (IPv6))}
170: , @cite{RFC3775 (Mobility Support in IPv6 (Mobile IPv6))}
171: and @cite{RFC4191 (Default Router Preferences and More-Specific Routes)}.
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