From: David Duncon (david_ccie@hotmail.com)
Date: Sat Oct 02 2004 - 09:03:17 GMT-3
Thanks for your response , SCott & Russ :-) Much appreciated.
David.
>From: "Scott Morris" <swm@emanon.com>
>Reply-To: <swm@emanon.com>
>To: "'David Duncon'" <david_ccie@hotmail.com>,<ccielab@groupstudy.com>
>Subject: RE: Matching Voice Signalling traffic
>Date: Thu, 30 Sep 2004 10:31:22 -0400
>
>H.323 voice (your voip dial peers) will use TCP 1720 as the signalling
>(H.225 portion).
>
>TCP 2000-2002 is the Cisco skinny stuff for the IP phones
>I have no idea where 2748 comes from though. TCP 2428 (and UDP 2427) is
>used for MGCP controls. You don't have MGCP on the R&S lab.
>
>I wouldn't stress out about it. Not a core topic here. If you are looking
>to go for the Voice CCIE, I'd know those ports plus the H.245 ones, SIP and
>GK as well. Just a thought. But otherwise, no worries. :)
>
>HTH,
>
>
>Scott Morris, CCIE4 (R&S/ISP-Dial/Security/Service Provider) #4713, CISSP,
>JNCIP, et al.
>IPExpert CCIE Program Manager
>IPExpert Sr. Technical Instructor
>swm@emanon.com/smorris@ipexpert.net
>http://www.ipexpert.net
>
>
>
>-----Original Message-----
>From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
>David Duncon
>Sent: Thursday, September 30, 2004 9:02 AM
>To: ccielab@groupstudy.com
>Subject: Matching Voice Signalling traffic
>
>Hello Group,
>
>I am little unsure on the best way to *match* the Signaling traffic.
>
>In the recent past I have a seen a config where the author has used to
>match
>the destination port greater than TCP 3000 , equal to TCP 2000 & 2748. And
>also equal to TCP 1720.
>
>Can some please explain why these ports are necessary to match signaling
>traffic. I was impression that signaling only uses TCP 1720 :(
>
>And also like RTP using the *even* ports from 16384 to 32768 , I was
>impression that Signaling uses *odd* ports in the same range ??
>
>I appreciate any clarification on the above queries :-)
>
>Thanks in advance
>
>David.
>
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