[cisco-voip] UDP 2000 from SRST router to IP phone?

[Lelio Fulgenzi]

That's was our understanding, TCP 2000.

I don't think we've ever heard about the sequential ports though. We've only 
opened up TCP 2000.

----- Original Message ----- 
From: "Matt Slaga (US)" <Matt.Slaga at us.didata.com>
To: "Paul Choi" <asobihoudai at yahoo.com>; "Lelio Fulgenzi" 
<lelio at uoguelph.ca>; <cisco-voip at puck.nether.net>
Sent: Thursday, July 05, 2007 9:09 PM
Subject: RE: [cisco-voip] UDP 2000 from SRST router to IP phone?


> Cisco contends that SCCP uses TCP 2000 - 2002 (one port for each
> CallManager in it's failover list).  Not sure about UDP 2000.
>
> -----Original Message-----
> From: cisco-voip-bounces at puck.nether.net
> [mailto:cisco-voip-bounces at puck.nether.net] On Behalf Of Paul Choi
> Sent: Thursday, July 05, 2007 9:01 PM
> To: Lelio Fulgenzi; cisco-voip at puck.nether.net
> Subject: Re: [cisco-voip] UDP 2000 from SRST router to IP phone?
>
> I could be full of shit but I'm pretty sure that SCCP
> uses UDP 2000 to communicate with CCM.
>
>
> --- Lelio Fulgenzi <lelio at uoguelph.ca> wrote:
>
>> We're just setting up some ACLs and found that while
>> in SRST mode, the SRST router (or at least the
>> loopback address that we bind MGCP to) tried to
>> communicate to the IP phone that was registered. We
>> had not allowed for this and as a result, the call
>> out the gateway was one way audio. But we didn't see
>> any other denies come out of the logs.
>>
>> I see that in the SRST config, it asks for a port,
>> and it is 2000. But it's still wierd to see UDP 2000
>> being used.
>>
>> Can anyone comment?
>>
>> 2d08h: %SEC-6-IPACCESSLOGP: list voice_in_kc denied
>> udp 10.104.122.141(17624) -> 10.104.34.48(2000), 1
>> packet
>>
>>    ^- IP phone              ^- SRST router
>>
>>
>>
> ------------------------------------------------------------------------
> --------
>> Lelio Fulgenzi, B.A.
>> Senior Analyst (CCS) * University of Guelph *
>> Guelph, Ontario N1G 2W1
>> (519) 824-4120 x56354 (519) 767-1060 FAX (JNHN)
>>
> ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
>>
>> "Buffalo buffalo Buffalo buffalo buffalo buffalo
>> Buffalo buffalo."      WJR
>> > _______________________________________________
>> cisco-voip mailing list
>> cisco-voip at puck.nether.net
>> https://puck.nether.net/mailman/listinfo/cisco-voip
>>
>
>
>
>
> ________________________________________________________________________
> ____________
> Yahoo! oneSearch: Finally, mobile search
> that gives answers, not web links.
> http://mobile.yahoo.com/mobileweb/onesearch?refer=1ONXIC
> _______________________________________________
> cisco-voip mailing list
> cisco-voip at puck.nether.net
> https://puck.nether.net/mailman/listinfo/cisco-voip
>
> -----------------------------------------
> Disclaimer:
>
> This e-mail communication and any attachments may contain
> confidential and privileged information and is for use by the
> designated addressee(s) named above only.  If you are not the
> intended addressee, you are hereby notified that you have received
> this communication in error and that any use or reproduction of
> this email or its contents is strictly prohibited and may be
> unlawful.  If you have received this communication in error, please
> notify us immediately by replying to this message and deleting it
> from your computer. Thank you.
>
>