[Serusers] Proxy sending ACK on port 5060 instead of on contact port

[Zeus Ng]

Mahesh,

Given that you have ethereal capture, send it in to the list and we can see
what's happening.

Zeus

> -----Original Message-----
> From: serusers-bounces at lists.iptel.org 
> [mailto:serusers-bounces at lists.iptel.org] On Behalf Of mahesh
> Sent: Wednesday, 15 September 2004 5:15 PM
> To: serusers at lists.iptel.org
> Subject: [Serusers] Proxy sending ACK on port 5060 instead of 
> on contact port
> 
> 
> Hi all,
> 
> I am using the following configuration to test SJPhone 
> through IPTEL proxy 
> server(publicly
> available:195.37.77.99).
> 
> HOST1(win2K)---FW1---Internet---FW2---HOST2(winXP)
> 
> Host1 and Host2 are hosts with private IPs having SJPhone 
> application. FW1 
> and FW2 are
> firewall/NAT devices with SIP-ALG implementation. This means 
> all the SIP 
> messages are modified to include the public IPs in them. Also the 
> via,contact ports are modified. Now both host1 and host2 
> register with the iptel proxy server. A call is initiated 
> from host1. Host2 
> sends 200 OK response
> to the HOST1. After this the ACK sent by Host1 is sent to 
> port 5060 on 
> HOst2,instead of the
> contact port advertised in 200 OK. This is observed from 
> ethereal captures 
> on Host2. All these
> messages are going through the proxy server(195.37.77.99).
> 
> Can someone please tell me why the proxy server is behaving 
> this way, i.e. 
> sending ACK on 5060
> instead of the contact. Is there anything that i am missing 
> here or doing 
> wrong.
> 
> Thanks
> Mahesh
> 
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