[OpenSER-Users] Saving public IP in CDR

Alex Hermann alex at speakup.nl
Fri Aug 10 13:36:19 CEST 2007


On Friday 10 August 2007 12:23, Andreas Sikkema wrote:
> > Yes, that is, I comment it to you because you said:
> >
> > "Unfortunately [...] $si contains the reported remote IP
> > address, not the
> > public IP address that the message has been received from."
> >
> > I think you are trying to get something impossible: the last
> > router IP through
> > which the packet arrieved to your OpenSer. That's not
> > possible, note that
> > layer 3 (IP) doesn't notify the intermediary IP address in
> > the received
> > message, you just can see the source and destination.
>
> No, I'm trying to get to the public IP address of a NATted
> SIP UA. This address is not found in the SIP message, but
> OpenSER knows it otherwise it couldn't reply to it ;-)

You could try to parse the Via headers to find the correct IP.

-- 
Greetings,

Alex Hermann




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