ipv6 router eigrp VS router eigrp + address-family ipv6
I am confused, what are the differences between these two?
Cisco doc for EIGRP IPv6 is using "ipv6 router eigrp"
But if you look at INEv5 Foundation Lab 2 8.1 for EIGRP IPv6, it is using "router eigrp + address-family ipv6"
Any help would be appreciated!
Comments
I guess one is old-style ipv6 eigrp, the other is multi-AF Named Mode
right - basically just like ipv4 eigrp, they're two different CLI formats for the same protocol - having said that you get certain things with the named/address family mode like wide metrics, a more logical grouping for commands - (no more split horizon or md authentication on the interfaces - it goes under the address family)
And I believe there are some advanced route tag options that may only be available in named mode as well as SHA authentication which is only available in named mode - watching the EIGRP named mode video for ipv4 will give you the skinny on ipv6 as they are essentially configured the same except for the addressing
Hi,
Initially you had "router eigrp" command for IPv4, when cisco added EIGRP support for IPv6, they added "ipv6 router eigrp" command, both of htse being EIGRP classic-mode; and finnaly now we have EIGRP named mode, which is multi-AF aware and you have all EIGRP configurations (IPv4/IPv6, VRF and non-VRF mode) under one container. Also EIGRP named mode adds several changes to metric computation, support several features which are not supported in classic-mode, and this is what you should be using from now on in production networks, as all new features added to EIGRP will bbe supported only in named mode; for example if you want to run EIGRP for IPv6 in VRF, you HAVE to use named mode.
Regards,
Cristian.