[c-nsp] IPv6 Subnetting - Service Provider

Florian Weimer fweimer at bfk.de
Fri Sep 12 03:50:33 EDT 2008


* Bob Snyder:

> One issue we ran into was that not all the networking gear we had
> could support /126. The vendor's (not Cisco) immature support for
> IPv6 could only understand the concept of /128 loopbacks and /64
> subnets.

Subnets smaller than /64 containing (conceptually) global unicast
addresses are not allowed per the IPv6 addressing architecture RFC.
So it's just another case of vendors got bitten by RFCs that don't
match customer requirements. 8-/

-- 
Florian Weimer                <fweimer at bfk.de>
BFK edv-consulting GmbH       http://www.bfk.de/
Kriegsstraße 100              tel: +49-721-96201-1
D-76133 Karlsruhe             fax: +49-721-96201-99


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