[NANOG] Multihoming for small frys?

Wed May 21 06:53:27 UTC 2008

On Tue, 20 May 2008, Tony Varriale wrote:

> AFAIK, ARIN doesn't give out /22s anymore.
> 
> Last time I went to the well...it's was a /20 or better.

Nah, it's /22 for multi-homed networks, /20 for single-homed.

http://www.arin.net/registration/guidelines/ipv4_initial_alloc.html

4.3.2.2 Multihomed Connection
For end-users who demonstrate an intent to announce the requested space in 
a multihomed fashion, the minimum block of IP address space assigned is a 
/22. If assignments smaller than a /22 are needed, multihomed end-users 
should contact their upstream providers. When prefixes are assigned which 
are longer than /20, they will be from a block reserved for that purpose.

Are there really networks who can justify a /20 that aren't multi-homed? 
The mind boggles.

Andy

---
Andy Dills
Xecunet, Inc.
www.xecu.net
301-682-9972
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