Which two steps must you perform on each device that is configured for ipv4 routing before you implement OSPFv3? (chooose two)
A. configure an autonomous system number
B. configure a loopback interface
C. configure a router ID
D. enable IPv6 on an interface
E. enable IPv6 unicast routing
If the router is already configured for IPv4, then OSPFv3 will automatically set the Router ID as the highest IP address available on the router. Correct answers should be D and E
I would say C & E. I cannot see how OSPF v3 can be activated on an interface if the router ID is not se ant the unicast routing is not active.
The question specifically says that it was configured for ipv4 routing, therefore we can conclude that it has at least an ipv4 address and that it doesn’t need to have a router id explicit set. So DE should be the answer. I’m not 100% sure though.
Correct answer should be DE:
Please read cisco documentation below:
https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/ipv6/configuration/15-2mt/ipv6-15-2mt-book/ip6-ospf.html