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From: chuck gelm <chuck@gelm.net>
To: linux-newbie@vger.kernel.org
Subject: Displaying 'ping' data with 'tcpdump' ?
Date: Fri, 13 Aug 2004 15:46:53 -0400	[thread overview]
Message-ID: <411D1AAD.8020700@gelm.net> (raw)
In-Reply-To: <5.1.0.14.1.20040813093835.01fe0dc0@celine>

Hi, Everyone:

  I am having difficulty displaying the pattern data
inside a 'ping' packet using 'tcpdump'.

  I am sending a periodic 'broadcast' padded with 'data':
ping -f -i 3600 -p 204445204E43385120   #" DE NC8Q "

  I want to display this data on a console.  I am using
'tcpdump -i eth1 -v -X'
but this shows too much data/activity.

'tcpdump -i eth1 -v -X port 7'  displays nothing.

Perhaps something other than 'tcpdump' would be more suitable?

1. How can I display only the 'echo request' packets?
2. How can I display only the 'echo reply'   packets?

Regards, Chuck


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  reply	other threads:[~2004-08-13 19:46 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-08-13  9:21 Gnome, KDE won't Open Peter
2004-08-13 17:07 ` Ray Olszewski
2004-08-13 19:46   ` chuck gelm [this message]
2004-08-13 20:15     ` Displaying 'ping' data with 'tcpdump' ? Ray Olszewski
2004-08-14  0:40       ` chuck gelm
2004-08-14  2:50   ` Gnome, KDE won't Open Peter

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