You can use the ip route-type or ipv6 route-type command to specify
whether OSPF routes are available for only unicast forwarding protocols
or only multicast reverse-path-forwarding (RPF) checks. Routes available
for unicast forwarding appear in the unicast view of the routing table,
whereas routes available for multicast RPF checks appear in the multicast
view of the routing table.
To enable a multicast protocol and MPLS traffic
engineering (TE) to interoperate on a router running OSPF, use the mpls traffic-eng multicast-intact command.
ip route-type
ipv6 route-type
Use to specify whether OSPF routes are available only
for unicast forwarding, only for multicast RPF checks, or for both.
Use the show ip route or show ipv6 route command to view the routes available
for unicast forwarding.
Use the show ip rpf-routes or show ipv6 rpf-routes command to view the routes available
for multicast RPF checks.
By default, OSPF routes are available for both unicast
forwarding and multicast RPF checks.
Example 1
host1(config)#router ospf
host1(config-router)#ip route-type unicast
Example 2
host1(config)#router ospf
host1((config-router)#)#ipv6 route-type unicast
Use the no version to restore
the default value, both.