Hi,
This is a new one for us. We were getting complaints of dropped calls from one of our subscribers. We analyzed sample calls and it turns our his SMC Router is spontaneously changing the source UDP port of the media stream in the middle of the call!
Has anybody else seen this strange behaviour on any router?
The problem also affects SIP registrations. Even with a Keep Alive of 3 seconds in the Sipura settings, the SMC spontaneously changes ports every 5-6 minutes.
that's really dreadful NAT implementation.
-jiri
At 01:14 AM 7/19/2004, Andres wrote:
Hi,
This is a new one for us. We were getting complaints of dropped calls from one of our subscribers. We analyzed sample calls and it turns our his SMC Router is spontaneously changing the source UDP port of the media stream in the middle of the call! Has anybody else seen this strange behaviour on any router?
The problem also affects SIP registrations. Even with a Keep Alive of 3 seconds in the Sipura settings, the SMC spontaneously changes ports every 5-6 minutes.
Andres Network Admin http://www.telesip.net
Serusers mailing list serusers@lists.iptel.org http://lists.iptel.org/mailman/listinfo/serusers
-- Jiri Kuthan http://iptel.org/~jiri/
Andres,
Could you send us the model and firmware version of the SMC router? We do have a couple of clients using that brand. So far, I didn't receive any complain from them, but it's worth looking into.
Zeus
-----Original Message----- From: serusers-bounces@lists.iptel.org [mailto:serusers-bounces@lists.iptel.org] On Behalf Of Andres Sent: Monday, 19 July 2004 9:14 AM To: serusers@lists.iptel.org Subject: [Serusers] Spontaneous UDP Port Change on SMC Router
Hi,
This is a new one for us. We were getting complaints of dropped calls from one of our subscribers. We analyzed sample calls and it turns our his SMC Router is spontaneously changing the source UDP port of the media stream in the middle of the call!
Has anybody else seen this strange behaviour on any router?
The problem also affects SIP registrations. Even with a Keep Alive of 3 seconds in the Sipura settings, the SMC spontaneously changes ports every 5-6 minutes.
-- Andres Network Admin http://www.telesip.net
Serusers mailing list serusers@lists.iptel.org http://lists.iptel.org/mailman/listinfo/serusers
* Zeus Ng zeus.ng@isquare.com.au [040719 02:05]:
Andres,
Could you send us the model and firmware version of the SMC router? We do have a couple of clients using that brand. So far, I didn't receive any complain from them, but it's worth looking into.
Zeus
-----Original Message----- From: serusers-bounces@lists.iptel.org [mailto:serusers-bounces@lists.iptel.org] On Behalf Of Andres Sent: Monday, 19 July 2004 9:14 AM To: serusers@lists.iptel.org Subject: [Serusers] Spontaneous UDP Port Change on SMC Router
Hi,
This is a new one for us. We were getting complaints of dropped calls from one of our subscribers. We analyzed sample calls and it turns our his SMC Router is spontaneously changing the source UDP port of the media stream in the middle of the call!
Has anybody else seen this strange behaviour on any router?
The problem also affects SIP registrations. Even with a Keep Alive of 3 seconds in the Sipura settings, the SMC spontaneously changes ports every 5-6 minutes.
I've seen it before on SMC, and They've made a new firmware I think that fixes it, atleast on some of the barricades
-Atle
-
Andres -
Atle Samuelsen -
Jiri Kuthan -
Zeus Ng