[63071] in North American Network Operators' Group
RE: New Team Cymru IP2ASN whois server
daemon@ATHENA.MIT.EDU (Jeroen Massar)
Fri Sep 26 05:54:26 2003
From: "Jeroen Massar" <jeroen@unfix.org>
To: "'Pekka Savola'" <pekkas@netcore.fi>, "'NANOG'" <nanog@merit.edu>
Date: Fri, 26 Sep 2003 11:53:48 +0200
In-Reply-To: <Pine.LNX.4.44.0309261222220.24123-100000@netcore.fi>
Errors-To: owner-nanog-outgoing@merit.edu
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Pekka Savola wrote:
> On Fri, 26 Sep 2003, Stephen Gill wrote:
> > $ whois -h whois.cymru.com 4.2.2.1
> > ASN | IP | Name
> > 3356 | 4.2.2.1 | LEVEL3 Level 3 Communications
>
> Do you plan to support IPv6 -> ASN mappings as well, at some point?
>
> Another interesting feature related to that would be
> supporting special resolution of 6to4 addresses (RFC3056); looking up
> 2002:0102:0304:: would give you also the info on IP 1.2.3.4.
Indeed _also_, as the source ASN's can differ between the ASN's
used for announcing the IPv4 and the IPv6 prefix.
Fortunatly, except for currently 4 prefixes, there should not
be something more specific than 2002::/16 per RFC3056.
From GRH:
2002:c2b1:d06e::/48 More specific 6to4 prefix (194.177.208.110/32) from AS5408
2002:c8a2::/33 More specific 6to4 prefix (200.162.0.0/17) from AS15180
2002:c8c6:4000::/34 More specific 6to4 prefix (200.198.64.0/18) from AS15180
2002:c8ca:7000::/36 More specific 6to4 prefix (200.202.112.0/20) from AS15180
BTW if somebody has a working contact for AS15180, don't mind to
mention it, as they seem quite unresponsive... Others did respond
and cleansed it up btw :)
Greets,
Jeroen
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