[54085] in North American Network Operators' Group
Re: /8s and filtering
daemon@ATHENA.MIT.EDU (bdragon@gweep.net)
Tue Dec 10 13:05:30 2002
To: hnarayan@cs.ucsd.edu (Harsha Narayan)
Date: Tue, 10 Dec 2002 13:04:20 -0500 (EST)
Cc: nanog@merit.edu
In-Reply-To: <Pine.GSO.4.32.0212100106250.17744-100000@gradlab.ucsd.edu> from "Harsha Narayan" at Dec 10, 2002 01:23:17 AM
From: <bdragon@gweep.net>
Errors-To: owner-nanog-outgoing@merit.edu
> Hello,
> Currently APNIC's policy means that if an organization can fully use a
> /26 (since 25% of /24=/26 and to satisfy the multihoming requirement the
> organization will need to have a prefix advertised by two or more ISPs) it
> can get a multihoming assignment from APNIC.
If RIRs begin allocating really long prefixes, it would be best if they
did it all from a single block. Allowing providers to allow long prefixes
only from that block, rather than having to accept /24 willy nilly
across the entire address space.
Also, just because an RIR is allocating out of former class C does not
necessarily mean providers will accept a /24, if the RIR allocation
policy is shorter than /24. However, this is not a problem as long as
the entity receiving the address space always announces their largest
aggregate. It is only a problem when people only announce more-specifics.
