Re: 32.1.0.0/16 and v6 collateral damage

[Gert Doering <gert@space.net>]

Hi,

On Tue, Dec 04, 2007 at 09:04:01PM -0600, Kevin Day wrote:
> (resending because I don't think this made it through last time,  
> please ignore any duplicates)

I see it for the first time, so the first time definitely didn't make
it here.

> We had an ISP contact us saying we were announcing 32.1.73.0/24 (part  
> of AT&T's space) which was breaking something for them. In fact,  
> random subnets in 32.1.0.0/16 were showing up in their routing table  
> going to all sorts of ASNs, which was confusing to them.
> [ .. ]

Ugh.

Have you been able to pinpoint the specific device in the path where the 
breakage occured?  If yes, do you know the model and software version number?

[..]
> Has anyone else seen any breakage involving 32.1.0.0/16 (2001::) or  
> 32.2.0.0/16 (2002::)? 

I haven't.  (Well, IPv6 peers show up in the BGP mib with 32.1.0.0 
addresses, but that's a completely unrelated phenomenom).

Gert Doering
        -- NetMaster
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