[63200] in North American Network Operators' Group
Re: ICMP Blocking Woes
daemon@ATHENA.MIT.EDU (Geo.)
Tue Sep 30 06:24:21 2003
Reply-To: "Geo." <georger@getinfo.net>
From: "Geo." <georger@getinfo.net>
To: "E.B. Dreger" <eddy+public+spam@noc.everquick.net>,
<nanog@merit.edu>
Date: Tue, 30 Sep 2003 06:22:06 -0400
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.
WindowsNT tracert.exe uses 92 byte icmp packets. There is a modified version
that uses a smaller sized icmp packet at
http://www.nthelp.com/NT6/tracert_broken.htm that works fine on Windows
2000.
Geo.
