[Serusers] Responses on the source port of the request

[Andrei Pelinescu-Onciul]

On Oct 05, 2004 at 14:48, mahesh <mahesha at intoto.com> wrote:
> Andrei,
> 
> Any significant reason on why this is being done??

Because there are a lot of broken UAs not including rport in their Vias
and probably all UAs are symmetric these days.

Andrei

> 
> At 08:59 PM 10/1/2004, Andrei Pelinescu-Onciul wrote:
> >On Oct 01, 2004 at 10:16, mahesh <mahesha at intoto.com> wrote:
> >> Hi Andrei,
> >> Thanks for the reply.
> >>
> >> I am using the publicly available iptel proxy server(195.37.77.99) to 
> >test
> >> my implementation of SIP-ALG. I am using the following configuration
> >>
> >> HOST1(winXP)---FW---Internet---HOST2(winCP)
> >>
> >> FW is the firewall/NAT device, which has the ALG implementation. I am 
> >using
> >> SJPhone on my hosts to communicate using SIP(UDP). I observe that the
> >> responses to requests sent by HOST1 come from the proxy(iptel) to the
> >> source port(of FW), from which the request was sent, instead of on VIA.
> >> There is no "rport"  field in the VIA header field of the request.
> >>
> >> Does anyone know if the iptel proxy server is configured to use
> >> "force_rport".
> >
> >Yes, it is.
> >
> >Andrei
>