IPv6 Prefix announcing
gbonser at seven.com
Tue Apr 26 12:12:40 CDT 2011
> From: Kate Gerry
> Sent: Tuesday, April 26, 2011 9:39 AM
> To: 'Justin M. Streiner'; nanog at nanog.org
> Subject: RE: IPv6 Prefix announcing
> Funny enough, some carriers actually require the 'smallest' as being
> /32... :(
That might be true in PA space, but PI space is issued down to /48. I
am not aware of anyone who filters smaller than a /32 in PI space though
that doesn't mean it doesn't happen. The largest holdout was Verizon
but my understanding is they now accept a /48 in PI space.
A /32 is the smallest prefix issued in PA and some networks will not
accept a prefix smaller than /32 from PA address space.
A /48 is the smallest prefix issued in PI and some networks will not
accept a prefix smaller than /48 from PI address space.
In other words, if you are going to attempt to multihome a /48
allocation from your provider's aggregate, you are better off getting
your own provider independent block.
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