[147358] in North American Network Operators' Group
Re: Juniper <-> Cisco IPv6 BGP peering
daemon@ATHENA.MIT.EDU (Jack Bates)
Wed Dec 7 17:43:32 2011
Date: Wed, 07 Dec 2011 16:42:33 -0600
From: Jack Bates <jbates@brightok.net>
To: Randy Carpenter <rcarpen@network1.net>
In-Reply-To: <28bcf7c7-cdf1-4e81-b419-c6807109400f@zimbra.network1.net>
Cc: Nanog <nanog@nanog.org>
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
On 12/7/2011 4:30 PM, Randy Carpenter wrote:
>
> BGP is working fine, it is when they are trying to forward the packets back to me. They are seeing the Link-Local as the next-hop, which, for some reason, they cannot get to.
>
>
Your subject is misleading. It appears to be an NDP problem. Check
configs and firewall rules on both sides to make sure NDP isn't being
interrupted.
I've not seen any NDP compatibility problems between IOS 12.2SR, 12.3T,
and Junos 9.3, 9.6, 10.4. However, there are several vendor commands as
well as firewall rulesets, which could NDP itself.
Jack
