IPv6 Configuration Guide K/KA/KB.15.15

NOTE: Before enabling OSPFv3, ensure that ipv6 unicast-routing is enabled. Also,
either begin each command with router ospf3, or execute router ospf3 at the global
CONFIG level and then execute the individual commands in that context. For example:
HP Switch(config)# router ospf3
HP Switch(ospf3)# enable
Use the appropriate interface context to set interface level OSPFv3 parameters for the desired
interface. To access this context level, use vlan vid or interface tunnel tunnel-id
either to move to the interface context level or to specify that context from the global config level.
For example:
HP Switch(config)# vlan 20
HP Switch(vlan-20)# cost 15
HP Switch(config)# vlan 20 cost 15
HP Switch(config)# interface tunnel 3
HP Switch(tunnel-3)# ipv6 ospf3 cost 15
HP Switch(config)# interface tunnel 3 ipv6 ospf3 cost 15
OSPFv3 redistribution of loopback addresses
When you assign an IPv6 address to a loopback interface on a routing switch, the address is listed
as connected in the route table on that routing switch and is advertised to neighbors as described
in Table 18 (page 258).
Table 18 Route redistribution of loopback addresses
Route redistribution disabledRoute redistribution enabledLoopback address assignment
The loopback address is not advertised
to neighbors.
The loopback address is advertised to
neighbors as an OSPFv3 External
route.
Loopback not assigned to an OSPFv3
area
The loopback address is advertised to neighbors in the same area as an OSPFv3
Intra-Area route. For all other areas it is advertised as an OSPFv3 Inter-Area
route.
Loopback is assigned to an OSPFv3
area
About configuring for external route redistribution in an OSPFv3 domain
(optional)
Configuring route redistribution for OSPFv3 establishes the routing switch as an ASBR (residing in
a backbone, normal, or NSSA) for importing and translating different protocol routes from other
IGP domains into an OSPFv3 domain. The switches support redistribution for static routes and
directly connected routes. When you configure redistribution for OSPF, you can specify that static
or connected routes external to the OSPFv3 domain are imported as OSPFv3 routes. The steps for
configuring external route redistribution to support ASBR operation include the following:
1. Optional: Configure route-maps to permit and/or deny route prefixes for redistribution in your
OSPFv3 domain.
2. Enable route redistribution.
3. Optional: Modify the default metric for redistribution.
4. Optional: Modify the redistribution metric type.
258 OSPFv3 Routing