[46218] in North American Network Operators' Group

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Re: ICMP filters again

daemon@ATHENA.MIT.EDU (German Martinez)
Thu Mar 21 07:23:18 2002

Date: Thu, 21 Mar 2002 07:22:27 -0500 (EST)
From: German Martinez <gmartine@mafalda.opentransit.net>
To: Donn Lasher <dlasher@clearskynet.net>
Cc: "Christopher E. Brown" <cbrown@woods.net>,
	NANOG <nanog@merit.edu>
In-Reply-To: <5.1.0.14.2.20020320165636.00b66690@mail.clearskynet.net>
Message-ID: <Pine.LNX.4.33.0203210719480.4728-100000@mafalda.opentransit.net>
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Errors-To: owner-nanog-outgoing@merit.edu


On Wed, 20 Mar 2002, Donn Lasher wrote:

>
> At 05:16 AM 3/20/2002 -0700, Christopher E. Brown wrote:
> >Is it just me, or are the Tripod member sited filtering type 3 ICMP
> >again? (Think < 1500 octet MTU links and DF/FN)

Donn,
Use this tool:

http://michael.toren.net/code/tcptraceroute/

tcptraceroute is a traceroute implementation using TCP packets.


>
> Would be nice if there was a "list" somewhere of sites that did this. Would
> sure make troubleshooting customers complaining of "unreachable web sites"
> a heck of a lot easier. (Think MLPS over 1514 byte pipes)
>
>
>
>


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