[NANOG] Multihoming for small frys?

Tue May 20 20:28:59 UTC 2008

If the same /24 is announced from 2 different sites, the problem we have
run into is that using the longest prefix method is the only way to
guarantee that some ISPs will not use some method such as private
peering to cause asymmetric routing back to the small fry. 

-----Original Message-----
From: david raistrick [mailto:drais at icantclick.org] 
Sent: Tuesday, May 20, 2008 12:32 PM
To: William Herrin
Cc: nanog at nanog.org
Subject: Re: [NANOG] Multihoming for small frys?

On Tue, 20 May 2008, William Herrin wrote:

> The last I heard, the way to make this happen was: Find a service
> provider with IP blocks available in ARIN's set of /8's that permit

....that part isn't required.   Generally any /24 will do in my 
experience except for specific cases.

Other than that, you've got it about right.

---
david raistrick        http://www.netmeister.org/news/learn2quote.html
drais at icantclick.org             http://www.expita.com/nomime.html

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