On Tue, 19 Aug 2008, Michael Thomas wrote:
Justin M. Streiner wrote:
I don't operate an ISP network (not anymore, anyway...). My customers are departments within my organization, so a /64 per department/VLAN is more sane/reasonable for my environment.
Uh, the lower 64 bits of an IP6 address aren't used for routing you know? They're essentially the mac address, or some other sort of autoconf'd host identifier. Last I heard, the smallest allocation is supposed to be a /48 -- I hadn't heard of the /56 thing that Michael was speaking of, though I'm not surprised. There's 64 bits for routing... no need to be so stingy :)
It doesn't make sense to allocate a /48 to a (V)LAN. Address autoconfiguration is based on the assumption that the only reason for having more than one global /64 prefix on a LAN is during renumbering. Tony. -- f.anthony.n.finch <dot@dotat.at> http://dotat.at/ HEBRIDES BAILEY FAIR ISLE FAEROES: NORTH OR NORTHEAST 5 OR 6 DECREASING 4 OR 5, BECOMING VARIABLE 3 IN NORTH BAILEY AND WEST FAEROES LATER. MODERATE OR ROUGH. MAINLY FAIR. MODERATE OR GOOD.