[Serusers] Spontaneous UDP Port Change on SMC Router

Zeus Ng zeus.ng at isquare.com.au
Mon Jul 19 02:04:51 CEST 2004


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 at lists.iptel.org 
> [mailto:serusers-bounces at lists.iptel.org] On Behalf Of Andres
> Sent: Monday, 19 July 2004 9:14 AM
> To: serusers at 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
> 
> 
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