[cisco-voip] more ACL questions - RTP from CUE outside RTP range

[Wes Sisk]

only some devices use that port range for RTP.  CUCM does not. CIPC does not.  IOS does because of the way it allocates port numbers.

for anything based on a common os (windows/linux) the socket command does not allow specifying a subset of port numbers. this makes compliance nearly impossible.

CUE is running on linux.

On Dec 2, 2011, at 5:02 PM, Lelio Fulgenzi wrote:

So I've got another ACL question. 

When trying to communicate with my CUE module, I get the following error:

%SEC-6-IPACCESSLOGP: list voice_endpoints_out denied udp cue.ipaddr(32773) -> ipphone.ipaddr(19072), 1 packet

I'm assuming this is RTP communications, but then why is the source address higher than the advertised range 16384 to 32767?

I always thought RTP would only communicate to each other from and to a port within this range.

Thoughts?



---
Lelio Fulgenzi, B.A.
Senior Analyst (CCS) * University of Guelph * Guelph, Ontario N1G 2W1
(519) 824-4120 x56354 (519) 767-1060 FAX (ANNU)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Cooking with unix is easy. You just sed it and forget it. 
                              - LFJ (with apologies to Mr. Popeil)


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