Which two statements about OSPFv3 are true? (Choose two.)
A. It uses loopback IPv6 addresses to form neighbor relationships.
B. The router ID is configured as an IPv4 address.
C. It uses LSA type 6 for intra-area prefixes.
D. The router ID is configured as an IPv6 address.
E. It is backwards-compatible with OSPFv2 through the use of a sham link.
F. It uses link-local addresses to form neighbor relationships.
http://www.ciscopress.com/articles/article.asp?p=2294214&seqNum=4
he OSPF process for IPv6 does not require an IPv4 address to be configured on the router, but it does require a 32-bit value for the router ID, which uses IPv4 address notation.
BF
https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/iproute_ospf/configuration/15-1sg/ip6-route-ospfv3.html
Link LSAs provide the link-local address of the router to all other routers attached to the link, inform other routers attached to the link of a list of prefixes to associate with the link, and allow the router to assert a collection of Options bits to associate with the network LSA that will be originated for the link.
BF
https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/iproute_ospf/configuration/15-1sg/ip6-route-ospfv3.html
Link LSAs provide the link-local address of the router to all other routers attached to the link, inform other routers attached to the link of a list of prefixes to associate with the link, and allow the router to assert a collection of Options bits to associate with the network LSA that will be originated for the link.
http://www.ciscopress.com/articles/article.asp?p=2294214&seqNum=4
he OSPF process for IPv6 does not require an IPv4 address to be configured on the router, but it does require a 32-bit value for the router ID, which uses IPv4 address notation.