[85978] in North American Network Operators' Group
Re: /24 multihoming issue
daemon@ATHENA.MIT.EDU (Kyaw Khine)
Thu Oct 20 01:34:08 2005
Date: Wed, 19 Oct 2005 22:32:20 -0700 (PDT)
From: Kyaw Khine <joekhine@yahoo.com>
To: "Christopher L. Morrow" <christopher.morrow@mci.com>
Cc: nanog@merit.edu
In-Reply-To: <Pine.GSO.4.58.0510200445270.22139@parapet.argfrp.us.uu.net>
Errors-To: owner-nanog@merit.edu
I've heard and seen those filters a few years ago. In
this particular case, I've seen a bunch of other /24s
(from remote ASs) on the looking glasses.
Looks like filters are base on other criteria on top
of prefix length and I wonder which criterion this /24
falls into.
--- "Christopher L. Morrow"
<christopher.morrow@mci.com> wrote:
>
> On Wed, 19 Oct 2005, Kyaw Khine wrote:
>
>
> > I've contacted both ISPs and they both claimed
> they
> > are announcing our /24 to the rest of the world,
> > without manipulation.
> >
> > What am I missing here?
>
> some providers (for whatever reason, not really
> relevant to this
> conversation) do filter at boundaries NOT /24 :(
> Some filter /20 or /22 or
> other odd-ball boundaries.
>
> -Chris
>
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