Configuring IPv6 Routing 1085Configuring IPv6 Neighbor DiscoveryUse the following commands to configure IPv6 Neighbor Discovery settings.Command Purposeipv6 nd prefixprefix/prefix-length[{valid-lifetime|infinite} {preferred-lifetime| infinite}][no-autoconfig] [off-link]Configure parameters associated with network prefixes thatthe router advertises in its Neighbor Discoveryadvertisements.• ipv6-prefix—IPv6 network prefix.•prefix-length—IPv6 network prefix length.•valid-lifetime—Valid lifetime of the router in seconds.(Range: 0–4294967295 seconds.)• infinite—Indicates lifetime value is infinite.•preferred-lifetime—Preferred-lifetime of the router inseconds. (Range: 0–4294967295 seconds.)• no-autoconfig—Do not use the prefix for autoconfiguration.• off-link—Do not use the prefix for onlink determination.ipv6 nd ra-intervalmaximum minimumSet the transmission interval between router NeighborDiscovery advertisements.•maximum — The maximum interval duration (Range:4–1800 seconds).•minimum — The minimum interval duration (Range: 3 –(0.75 * maximum) seconds).ipv6 nd ra-lifetimesecondsSet the value that is placed in the Router Lifetime field ofthe router Neighbor Discovery advertisements sent from theinterface.Theseconds value must be zero, or it must be an integerbetween the value of the router advertisement transmissioninterval and 9000 seconds. A value of zero means this routeris not to be used as the default router. (Range: 0-9000).ipv6 nd suppress-ra Suppress router advertisement transmission on an interface.ipv6 nd dad attemptsvalueSet the number of duplicate address detection probestransmitted while doing Neighbor Discovery.The range forvalue is 0–600.
