[c-nsp] ipv6 vrf ?

Ian Cox icox at cisco.com
Wed Aug 24 10:45:33 EDT 2005


At 03:42 PM 8/24/2005 +0400, Alexandre Snarskii wrote:

>Hi!
>
>Looks like Cisco does not supports ipv6 l3vpn's ?

Correct at present.

>And, moreover, when you configure ipv6 address on some vrf-forwarded
>interface, corresponding ipv6 route get entered into global ipv6 routing
>table, so interface lost its isolation...

IPv4 is only in the VRF, IPv6 is in the global table.


Ian

>I found it while configuring ipv6 address in vrf-forwarded
>interface, and when i tried to test connectivity - my ipv6 traffic
>got routed over 'global' ipv6 table. And replies returned back
>ignoring the fact that this interface belongs to vrf...
>
>Router is c6500/sup2/msfc2 equipped with osm-4ge-wan, 12.2(17d)SXB8,
>vrf interface is on OSM subinterface. Configuration is pretty simple:
>
>int ge-wan x/y.z
>  encap dot z
>  ip vrf forwarding XXXXX
>  ip address .....
>  ipv6 address .....
>
>Is this platform or ios limitation ? And, is this feature planned
>to be supported ? And, what about mpls/bgp ipv6 vpn's ?
>
>PS: my reasons to have vrf-forwarded ipv6 is pretty simple: i'm just
>starting to test ipv6, and trying to keep the same topology for ip and
>ipv6 networks.
>
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