IPv6 BGP peering...

From: Tony Paterra (apaterra@gmail.com)
Date: Wed May 24 2006 - 23:29:50 ART


Working through the basics of routing protocols in IPv6 and noticed
something that seemed strange to me... When creating BGP peerings
between 2 routers (EBGP or IBGP, not important) I started out by
configuring it like this...

For brevity... Assume routes are being passed in the BGP table and
IPv6 address/unicast-routing is configured.

R1:
E0/0: 1.1.1.1
router bgp 1
neighbor 2.2.2.2 remote 1

address-family ipv6
neighbor 2.2.2.2 remote 1
neighbor 2.2.2.2 activate

R2:
E0/0: 2.2.2.2
router bgp 1
neighbor 1.1.1.1 remote 1

address-family ipv6
neighbor 1.1.1.1 remote 1
neighbor 1.1.1.1 activate

What I'm having trouble seeing is BGP routes being passed even though
these neighbor relationships come up under "sh bgp ipv6 unicast
summary". When I change the address-family ipv6 commands to peer
with IPv6 addresses instead of IPv4 I am seeing these routes appear
in the IPv6 BGP table. I can't find a really good explanation of
this. Is there some basic rule for running IPv6 BGP alongside IPv4
that I'm missing?

Tony Paterra
apaterra@gmail.com



This archive was generated by hypermail 2.1.4 : Thu Jun 01 2006 - 06:33:22 ART