[Users] Response to Nat problem

[Weiter Leiter]

Check force_rport() functionality.

Cseke Tamas wrote:
> Hello!
>
> We've a problem with a provisional response. The invite is sent
> through NAT , and the response will be sent to incorrect port.
>
> The invite is sent from 193.77.152.140:53559 to ser, (it is a natted
> firewall. It not insert Via header, don't understand sip)
>
> The topmost via is:
>
> Via: SIP/2.0/UDP
> 10.10.1.2:5080;branch=z9hG4bK-a47f2525b20ab1a953a7c74174551819;received=193.77.152.140
>
>
> The server recognize, that it is received from 193.77.152.140, but the
> reply will be sent to 193.77.152.140:5080
> according to the RFC 3261 the port used in the response is , what
> present  in the via header.
> How can  i  force that  the response will be sent to the source port
> (52559)?
>
> Thanks,
> Tamas
>
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