RE: TCP out-of-order problem

From: Ernst (gs@infosecureltd.com)
Date: Sat May 03 2008 - 10:50:40 ART


Hi Ram
No this is purely a CCIE R&S lab so no security devices. If it helps at all
I'm using Internetxperts Advanced technology workbooks at the moment.

Regards, Ernst

-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of Ram
Shummoogum
Sent: 03 May 2008 14:32
To: GS@infosecureltd.com
Cc: ccielab@groupstudy.com; nobody@groupstudy.com
Subject: Re: TCP out-of-order problem

Do you have any IDS/IPD with tap and bypass switch in that env.? That
might be the culprit.

<GS@infosecureltd.com>
Sent by: nobody@groupstudy.com
05/03/2008 08:10 AM
Please respond to
<GS@infosecureltd.com>

To
<ccielab@groupstudy.com>
cc

Subject
TCP out-of-order problem

Hi All
I know this is a very general question, but I'm just looking for some
general steering/guidance here. I've done a packet capture on VLAN146
which
is the vlan over which two EBGP peers are peering. I'm seeing quite a few
duplicate packet as well as quite a few out-of-order tcp packets. The
peers
are peering without any issues though.

Any ideas what could be causing this over a switched network? Also is this
normal or is this something to be concerned about? My guess is that it
isn't
normal.

Thanks for taking the time to read this.

Regards, Ernst



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