[63226] in North American Network Operators' Group
Re: ICMP Blocking Woes
daemon@ATHENA.MIT.EDU (bdragon@gweep.net)
Tue Sep 30 18:46:14 2003
To: nanog@merit.edu
Date: Tue, 30 Sep 2003 18:45:04 -0400 (EDT)
In-Reply-To: <Pine.LNX.4.44.0309300055300.15709-100000@a.mx.ict1.everquick.net> from "E.B. Dreger" at Sep 30, 2003 12:57:53 AM
From: bdragon@gweep.net
Errors-To: owner-nanog-outgoing@merit.edu
> AFAIK, it's been that way since Win95. I recall a certain
> vendor's dodgy ISDN router * * * on Windows traceroute, but
> working fine under *ix... for whatever reason, said router didn't
> like the ICMP traceroute, but returned unreachables in response
> to UDP when TTL expired.
>
>
> Eddy
Wasn't this based upon the premise that gear should not return ICMP
errors as a result of ICMP packet input as a precaution against error
loops? ie said dodgy router did the _right_ thing?
