I have a simple topology in which I have configure eigrp and ripng running IPv6 between two routers. When advertise the loopback ipv6 address from Router1 towards Router2 and I check the routing table I only see the network portion of the IPv6 address. Why can’t I see the entire address such as the network interface id portion as we see when using IPv4?
Router1(config-if)#do sh ipv6 int lo0 <strong>Loopback0</strong> is up, line protocol is up IPv6 is enabled, link-local address is FE80::F816:3EFF:FE88:7B43 No Virtual link-local address(es): Global unicast address(es): <strong>FC00:ABCD:BEEF:EFEF:F816:3EFF:FE88:7B43</strong>, subnet is FC00:ABCD:BEEF:EFEF::/64 [EUI]
Router2#sh ipv6 route eigrp IPv6 Routing Table - default - 4 entries Codes: C - Connected, L - Local, S - Static, U - Per-user Static route B - BGP, HA - Home Agent, MR - Mobile Router, R - RIP H - NHRP, I1 - ISIS L1, I2 - ISIS L2, IA - ISIS interarea IS - ISIS summary, D - EIGRP, EX - EIGRP external, NM - NEMO ND - ND Default, NDp - ND Prefix, DCE - Destination, NDr - Redirect RL - RPL, O - OSPF Intra, OI - OSPF Inter, OE1 - OSPF ext 1 OE2 - OSPF ext 2, ON1 - OSPF NSSA ext 1, ON2 - OSPF NSSA ext 2 la - LISP alt, lr - LISP site-registrations, ld - LISP dyn-eid a - Application D <strong>FC00:ABCD:BEEF:EFEF::/64</strong> [90/130816] via FE80::F816:3EFF:FE5F:C5C7, GigabitEthernet0/1 Router2#