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[Xen-users] TCP Sniffing issues + Snort

To: xen-users@xxxxxxxxxxxxxxxxxxx
Subject: [Xen-users] TCP Sniffing issues + Snort
From: Rodrigo Brayner <rodrigo@xxxxxxxxxxxxx>
Date: Mon, 21 Dec 2009 09:16:49 -0300
Delivery-date: Mon, 21 Dec 2009 04:19:39 -0800
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Hi everyone,

I'm just starting on virtualization with Citrix XenServer and I would really appreciate if anyone could help me. First of all, sorry if I couldn't find an answer on forum, but I've already tried hard.

I'm facing some problems regarding tcp sniffing on a debian lenny virtual server on citrix xenserver 5.5.0 installed on a Dell server HW. I have the server configured with two virtual interfaces, where one of them is receiving a mirrored traffic from an extreme switch. When trying tcpdump directly on xenserver on that interface I can see the full traffic on both xenbr or eth interfaces. Trying tcpdump on the virtual server I can only get UDP traffic (netbios...). I have already tried the procedure described on http://support.citrix.com/article/CTX121729 and others many times, however it is definitely not working. When I try the same procedure on HP or IBM server, I can't even get tcpdump working on the citrix xenserver shell. Am I missing something here?

Thank you!

Rodrigo Brayner

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