[76379] in North American Network Operators' Group
Re: ASN and Peering Problem
daemon@ATHENA.MIT.EDU (Patrick W Gilmore)
Wed Dec 8 15:22:29 2004
In-Reply-To: <Pine.CYG.4.58.0412081345530.2564@citabria>
Cc: Patrick W Gilmore <patrick@ianai.net>
From: Patrick W Gilmore <patrick@ianai.net>
Date: Wed, 8 Dec 2004 15:18:21 -0500
To: nanog@merit.edu
Errors-To: owner-nanog-outgoing@merit.edu
On Dec 8, 2004, at 2:59 PM, Adi Linden wrote:
> We currently have two /19 that we advertise on a single ASN. A client
> would like to obtain /23 or /22 from us. This is not a problem, except
> that their primary internet provider is someone else, other than us.
> I think that they would need to have their own ASN to advertise their
> portion of our ip space to their peers.
>
> My question is, should we provide the ASN or should they apply for an
> ASN?
They should.
> What is the minimum block considered routable, is it reasaonable to
> advertise a /23 on its own ASN?
Many people do /24s. There is no real difference between a /24 and /23
in most people's filters. A /20 may or may not get them more
reachability, but as long as you accept their /23 and announce the
aggregate CIDR, it should not matter.
> Are there any other solutions I haven't thought of?
Yes, but they are all bad. :)
--
TTFN,
patrick
P.S. Wow, two operational posts in one day. What is happening to this
list?
