[140193] in North American Network Operators' Group

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Re: Suspecious anycast prefixes

daemon@ATHENA.MIT.EDU (Yaoqing(Joey) Liu)
Wed May 4 16:21:04 2011

In-Reply-To: <28745737-E7D7-408A-9051-0BEB340FD8B0@hopcount.ca>
Date: Wed, 4 May 2011 15:20:59 -0500
From: "Yaoqing(Joey) Liu" <joey.liuyq@gmail.com>
To: Joe Abley <jabley@hopcount.ca>
Cc: bmanning@vacation.karoshi.com, nanog@nanog.org
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org

On Wed, May 4, 2011 at 3:15 PM, Joe Abley <jabley@hopcount.ca> wrote:

>
> On 2011-05-04, at 23:11, Yaoqing(Joey) Liu wrote:
>
> > Thanks for clarifying this, actually I have a few more blocks with four
> origin ASNs that I'm not positive if they are anycast prefixes. Please help
> distinguish them if the provide anycast service.
>
> You could probably get a good distance towards the answer to this by
> looking up the prefixes yourself using appropriate whois servers.
> Enumerating every prefix you see with more than one apparent origin and
> asking NANOG to type whois for you does not scale very well.
>

This is definitely a good idea, I'll do it right now. Thanks.

Yaoqing

>
>
> Joe

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