classful routes redux

Thu Nov 3 06:49:12 UTC 2005

On Wed, 2 Nov 2005, bmanning at vacation.karoshi.com wrote:

> er..  would this be a poor characterization of the IPv6 addressing 
> architecture which is encouraged by the IETF and the various RIR 
> members?
>
> 	class A ==  /32
> 	class B ==  /48
> 	class C ==  /56
> 	hostroute == /64

It's quite arbitrary though, unlike the old classful IPv4 divisions - 
a matter of policy, not technology. The allocation sizes can and do 
vary over both time (as policy changes, IIRC RIPE used to assign 
/35s iirc, now it's /32) and between different RIRs.

A hostroute is /128 btw. ;)

regards,
-- 
Paul Jakma	paul at clubi.ie	paul at jakma.org	Key ID: 64A2FF6A
Fortune:
QOTD:
 	"Every morning I read the obituaries; if my name's not there,
 	I go to work."