[72284] in North American Network Operators' Group
Re: Announcing a /19 from a /16
daemon@ATHENA.MIT.EDU (James)
Mon Jul 5 17:56:44 2004
Date: Mon, 5 Jul 2004 17:51:58 -0400
From: James <haesu@towardex.com>
To: Eric Pylko <eric@infinitenetworks.us>
Cc: nanog@merit.edu
In-Reply-To: <000e01c462ca$f7dc6af0$0117a8c0@d800>
Errors-To: owner-nanog-outgoing@merit.edu
> The response I got back was that this was impossible since ISPs require an
> announcement of the /16 the /19 would come from. I have done work with ISPs
> before (and have read the NANOG list for many years) but haven't heard of
> such a requirement nor can I find any standards that indicate the same
> thing.
>
> Does anyone have requirements of a /19 announcement requires the /16 to be
> there as well? The company has plenty of /16s that it uses internally that
> are not being announced on the Internet at all.
The /19 is big enough to not get filtered by the majority. I don't know of any
specific "rules" or "do's and don'ts" that prevents you from announcing such a
space as long as you have a) permission from the /16 administrator (which you
claim to have), b) non-private-AS number announcing it and perhaps c) register
it in a popular IRR database (i.e. ALTDB, RADB).
BGP advertisement really isn't a rocket science. What you announce and what the
majority accepts is what the internet sees.
-J
>
> Thanks-
>
> -Eric
>
--
James Jun TowardEX Technologies, Inc.
Technical Lead Network Design, Consulting, IT Outsourcing
james@towardex.com Boston-based Colocation & Bandwidth Services
cell: 1(978)-394-2867 web: http://www.towardex.com , noc: www.twdx.net
