nanog mailing list archives

Re: rfc1918 ignorant


From: Dave Temkin <dave () ordinaryworld com>
Date: Wed, 23 Jul 2003 13:50:05 -0400 (EDT)


Needs is a tough call.  Plenty of networks block ICMP at the border and
could very well be using 1918 addressing in between and you'd have no
idea.


-- 
David Temkin

On Wed, 23 Jul 2003, Lyndon Nerenberg wrote:


On Wednesday, July 23, 2003, at 11:40  AM, Dave Temkin wrote:
Except you're making assumptions as to how that router is used.

If it's being used for purely transit then your third paragraph doesn't
apply at all.  The traffic is not originating or terminating there, it
is
merely passing through.

When the router needs to send an ICMP packet back to the source it
becomes an originator.

--lyndon



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