On Tue, 29 Apr 2003 22:23:17 +0200 Iljitsch van Beijnum <iljitsch@muada.com> wrote: > - If we allow people to register non-routable globally unique > addresses for private use, eventually some of this address space will > leak out into the global routing table. In IPv4, filtering private > address ranges and long prefixes is well-established and if and when > this fails, the consequences are negligible. This seems OK to me and appears to put the burden in the right place. Shouldn't it be the responsibility of those who are allocated address space to properly manage it? Others can still filter on long and valid prefixes that they expect to hear. ...and if its gonna leak anyway, it might as well be globally unique. Other networks will certainly be less likely to collide and try to communicate with the leaked space. John