From: Ray Olszewski <ray@comarre.com>
To: linux-newbie@vger.kernel.org
Subject: Re: Displaying 'ping' data with 'tcpdump' ?
Date: Fri, 13 Aug 2004 13:15:01 -0700 [thread overview]
Message-ID: <5.1.0.14.1.20040813130631.01f9fd58@celine> (raw)
In-Reply-To: <411D1AAD.8020700@gelm.net>
At 03:46 PM 8/13/2004 -0400, chuck gelm wrote:
>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?
tcpdump icmp[icmptype]=icmp-echo -v -X
>2. How can I display only the 'echo reply' packets?
tcpdump icmp[icmptype]=icmp-echoreply -v -X
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next prev parent reply other threads:[~2004-08-13 20:15 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 ` Displaying 'ping' data with 'tcpdump' ? chuck gelm
2004-08-13 20:15 ` Ray Olszewski [this message]
2004-08-14 0:40 ` chuck gelm
2004-08-14 2:50 ` Gnome, KDE won't Open Peter
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