[Serusers] Is there a way to force the added Via: to contain a specific IP addr != send socket

[Michal Matyska]

Try insert into your ser.cfg advertised_address=205.66.77.88
Michal

Frank Durda IV píše v Ne 14. 06. 2009 v 23:52 -0500:
> I have a configuration where SER sits immediately
> adjacent to a NAT translation between 10.x.x.x on
> the SER side and public Internet on the other side
> of the NAT.  This a PSTN gateway that has only
> handled inbound SIP traffic, but now I am trying
> to send outbound and have run into issues.
> 
> I am able to fix Contact: and SDP payload IP addresses
> and such with various force commands, but I have
> not found a way to alter Via:, and that is causing
> problems.
> 
> To get the INVITE to forward out the right interface,
> we have to do a force_send_socket of say 10.2.4.6
> which does get the packet out on the right interface
> headed toward the NAT router, but that same value
> also gets put in the Via: header and so none of the
> public IP address destinations (eg 208.22.33.44) can
> send SIP messages back to our public IP address
> gateway (205.66.77.88).
> 
> So the INVITE that reaches 208.22.33.44 has
> packet source of 205.66.77.88), but the Via:
> is 10.2.4.6 and 208.22.33.44 replies to the Via:
> address, so we don't get any of the responses.
> 
> So, is there a way to force the Via: to put out
> the needed value so that things will come out right?
> 
> 
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