From: Miquel van Smoorenburg (no email)
Date: Wed Jun 05 2002 - 04:34:58 EDT
In article <>,
Sean M. Doran <> wrote:
>| Why treat exchange subnets differently to any other bit of backbone
>Oh, I wholeheartedly agree. I would love them all to use RFC 1918
>addresses, because it is VERY VERY VERY rare that anything outside
>the scope in which the 1918 local use addresses are unique actually
>has to communicate with backbone infrastructure of any type.
And again Path MTU discovery gets broken.
>What communication can your workstation have with an XYZNET router?
Receive ICMP size exceeded packets ?
I haven't seen a 'icmp source lo0' interface command yet. Hopefully
it will be added for ipv6 so exchanges can use link-local addressing
(ipv6 has no fragmentation, PMTUd is mandatory).