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 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 IPv6 allocation ranges, but this is dangerous today, as we don't know how future allocations will look like. Note: ICANN just doesn't get it. They have not allocated a reasonable prefix size to RIPE (like a /8), not even a /19, but "a big chunk of 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