[70333] in North American Network Operators' Group
IPv6 /20 allocated - update your BGP filters!
daemon@ATHENA.MIT.EDU (Jeroen Massar)
Mon May 10 12:01:06 2004
From: Jeroen Massar <jeroen@unfix.org>
To: nanog@merit.edu
Date: Mon, 10 May 2004 17:59:48 +0200
Errors-To: owner-nanog-outgoing@merit.edu
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Here is a message forwarded for Gert Doering:
-----Forwarded Message-----
From: Gert Doering <gert@space.net>
To: 6bone@ISI.EDU, ipv6-wg@ripe.net
Subject: /20 allocated - update your BGP filters!
Date: Mon, 10 May 2004 17:56:51 +0200
Hi,
the first IPv6 /20 allocation ever has been made today:
inet6num: 2001:2000::/20
netname: EU-TELIANET-20040510
org: ORG-TIC2-RIPE
descr: PROVIDER Local Registry
descr: TeliaSonera AB
country: EU
and this means that "if you have been following my filtering
recommendations, this network will not be accepted right now" (the=20
current filters had a minimum accepted prefix length of a /24).
I have updated the prefix filter recommendation page:
http://www.space.net/~gert/RIPE/ipv6-filters.html
and urge you to check whether your filters are prepared for these
large prefixes. (There is a /23 upcoming, and rumors speak of a
/19 being requested "real soon now").
TODO: the "strict" filter could do some grouping for different=20
IPv6 allocation ranges, but this is dangerous today, as we=20
don't know how future allocations will look like.
Note: ICANN just doesn't get it. They have not allocated a reasonable=20
prefix size to RIPE (like a /8), not even a /19, but "a big chunk of=20
14 sucessive /23s, summing up to a /20+/21+/22" - see the list at
http://www.iana.org/assignments/ipv6-tla-assignments
Gert Doering
-- RIPE Address Policy WG Co-Chair,
keeper of the IPv6 filter list
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