Re: Cisco Proprietary Protocol and Snort

["Joel Esler (jesler)" <jesler () cisco com>]

We need an actual packet capture of the traffic.

--
Joel Esler
Sent from my iPhone

On Jan 27, 2015, at 6:36 AM, Jutichai Thongkrachai <thsecmaniac () gmail com<mailto:thsecmaniac () gmail com>> wrote:

Here you are.

> From Snorby:

http://i57.tinypic.com/egr4ms.png




> From Wireshark:

http://i57.tinypic.com/21vnt.png




---------- จดหมายที่ถูกส่งต่อ ----------
From: "Al Lewis (allewi)" <allewi () cisco com<mailto:allewi () cisco com>>
To: Jutichai Thongkrachai <thsecmaniac () gmail com<mailto:thsecmaniac () gmail com>>, "snort-users () lists 
sourceforge net<mailto:snort-users () lists sourceforge net>" <snort-users () lists sourceforge net<mailto:snort-users 
() lists sourceforge net>>
Cc:
Date: Tue, 27 Jan 2015 11:05:12 +0000
Subject: Re: [Snort-users] Cisco Proprietary Protocol and Snort
Can you provide a sample of the traffic?

Albert Lewis
QA Software Engineer
SOURCEfire, Inc. now part of Cisco
9780 Patuxent Woods Drive
Columbia, MD 21046
Phone: (office) 443.430.7112
Email: allewi () cisco com<mailto:allewi () cisco com>

From: Jutichai Thongkrachai [mailto:thsecmaniac () gmail com<mailto:thsecmaniac () gmail com>]
Sent: Monday, January 26, 2015 11:46 PM
To: snort-users () lists sourceforge net<mailto:snort-users () lists sourceforge net>
Subject: [Snort-users] Cisco Proprietary Protocol and Snort

Hello,
My Snort keep telling me that it detect "snort_decoder: WARNING: BAD-TRAFFIC Bad IP protocol" (Sid:450,Gid:116) hourly 
which come from my Cisco Switch send Multicast Packet to the Network with its proprietary PIM protocol 
(sparse-dense-mode).
I'm curious that my Snort cannot decode Cisco PIM Protocol. So,it detect as
"WARNING: BAD-TRAFFIC Bad IP protocol" Is it possible?

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