From: Bajo (bajoalex@gmail.com)
Date: Fri May 26 2006 - 11:21:55 ART
Hi Victor/Tony,
That is an interesting question which I do not answer too.
But, the the neighbor command under IPV6 takes (and is documented as) both
IPv4 and IPv6 addresses as in "neighbor {*ip-address* | *peer-group-name* |
*ipv6-address*} "
My guess is it used for IPv6 and IPv4 tunneling where BGP is involved (will
try to lab this out)...similar to
http://www.cisco.com/warp/public/105/ipv6tunnel.html
Hope some IPv6 bGP guru will chip in.
Thanks.
On 5/24/06, Victor Cappuccio <cvictor@protokolgroup.com> wrote:
>
> Hi Tony
>
> I Think that the neighbor in the IPV6 Address Family should be an IPV6
> Address..
>
> Regards
> Victor
>
> -----Mensaje original-----
> De: nobody@groupstudy.com [mailto:nobody@groupstudy.com] En nombre de Tony
> Paterra
> Enviado el: Miircoles, 24 de Mayo de 2006 10:30 p.m.
> Para: GroupStudy CCIE
> Asunto: IPv6 BGP peering...
>
> 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
>
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-- Kind Regards,Bajo
This archive was generated by hypermail 2.1.4 : Thu Jun 01 2006 - 06:33:22 ART