Overview
22-2 IPv6 Configuration
autoconfigurationispartofRouterAdvertisementandtheSecureStackC3cansupportboth
statelessandstatefulautoconfigurationofendnodes.TheSecureStackC3supportsbothEUI64
interfaceidentifiersandmanuallyconfiguredinterfaceIDs.
RefertothefollowingRFCsformoreinformationaboutNeighborDiscoveryandstatelessaddress
autoconfiguration:
•RFC2461,“NeighborDiscoveryforIPVersi on6”
•RFC2462,“IPv6StatelessAddressAutoconfiguration”
ForICMPv6,errorPDUgenerationissupported,asarepathMTU,echo,andredirect.
RouterAdvertisementisanintegralpartofIPv6andissupported.Numerousoptionsare
availableincludingstateless/statefuladdressconfiguration,routerandaddresslifetimes,and
NeighborDiscoverytimercontrol.PingandtracerouteapplicationsforIPv6areprovided.
ManagementofIPv6featuresisprovidedbymeansofCLIcommandsandSNMP.SeeChapter21,
IPv6ManagementfordescriptionsoftheCLIcommands.
Default Conditions
ThefollowingtableliststhedefaultIPv6conditions.
Condition Default Value
IPv6 forwarding Enabled
IPv6 route distance 1
IPv6 unicast-routing D isabled
IPv6 enable Disabled
IPv6 mtu 1500
IPv6 nd dad attempts 1
IPv6 nd managed-config-flag False
IPv6 nd ns-interval 0
IPv6 nd other-config-flag False
IPv6 nd ra-interval 600
IPv6 nd ra-lifetime 1800
IPv6 nd reachable-time 0
IPv6 nd suppress-ra Disabled
IPv6 nd prefix Valid-lifetime — 604800
Preferred-lifetime — 2592000
Autoconfig — enabled
On-link — enabled