From owner-freebsd-hackers  Thu Sep 11 16:28:06 1997
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To: Chuck Robey <chuckr@glue.umd.edu>
cc: FreeBSD-Hackers <FreeBSD-Hackers@FreeBSD.ORG>
Subject: Re: network programming. 
In-reply-to: chuckr's message of Thu, 11 Sep 1997 19:06:26 -0400.<Pine.BSF.3.96.970911190130.2260C-100000@Journey2.mat.net> 
Date: Thu, 11 Sep 1997 16:27:43 -0700
From: "Eric A. Davis" <edavis@nas.nasa.gov>
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You want tcpdump located at /usr/sbin/tcpdump.


On Thu, 11 Sep 1997 19:06:26 -0400 (EDT) Chuck Robey wrote
>I have to do my very first network programming, a UDP client+server, and I
>was wondering if anyone knows of how I could go about intercepting
>something sent to a UDP socket, so I could use it for troubleshooting?  I
>don't want to receive it (else the client would never get it), just to
>monitor what's going on.  This is my home machine, and I (obviously) have
>root here.
>
>I don't want the application written for me, just a tool I could use to
>capture what's going on between my buggy server and my buggy client.
>
>Thanks for any hints, guys.
>
>----------------------------+-----------------------------------------------
>Chuck Robey                 | Interests include any kind of voice or data 
>chuckr@eng.umd.edu          | communications topic, C programming, and Unix.
>213 Lakeside Drive Apt T-1  |
>Greenbelt, MD 20770         | I run Journey2 and picnic, both FreeBSD
>(301) 220-2114              | version 3.0 current -- and great FUN!
>----------------------------+-----------------------------------------------
>


-- 
     Eric Allen Davis        Network Engineer
     edavis@nas.nasa.gov     NASA Ames Research Center 
     (415)604-2543           NAS Systems Division
     Pager: (415)428-6931