[OpenSIPS-Users] NAT issues on client and server

[Flavio Goncalves]

Hi Mark,

Try the global command *advertised_address*="*domain*.org" or the external
IP address. It should fix the problem with record routing.

Flavio E. Goncalves



2013/1/4 Mark Currie <mark at ziliant.com>

> Thanks for the advice Flavio.****
>
> ** **
>
> Currently I am actually pretty close with my NAT’ed OpenSIPS and NAT’ed
> clients. I am assuming this is because I have a simple NAT scenario with
> full-cone NATs.****
>
> ** **
>
> I get as far as making a call, but when I pick-up the call only one side
> gets RTP through. I traced the problem to the fact that a local address is
> being put in the “Record Route” section of an ACK response.****
>
> ** **
>
> I would like to try to get this more controllable scenario working first
> before I launch into new complexity with RTP proxies etc. I think that I
> just need to know how to get the fix_nat_sip() and fix_nat_contact() to
> work. Any pointers with that?****
>
> ** **
>
> Regards****
>
> Mark****
>
> ** **
>
> *From:* users-bounces at lists.opensips.org [mailto:
> users-bounces at lists.opensips.org] *On Behalf Of *Flavio Goncalves
> *Sent:* 03 January 2013 12:27
> *To:* OpenSIPS users mailling list
> *Subject:* Re: [OpenSIPS-Users] NAT issues on client and server****
>
> ** **
>
> Hi Mark, ****
>
> ** **
>
> There is no simple way to traverse NAT. Unless all your routers use a non
> symmetric NAT, you will have to use rtpproxy or mediaproxy (you can check
> this with a stun client). OpenSIPS behind NAT make things even more
> complicated. So I suggest that you follow an example with rtpproxy or media
> proxy and also use the OpenSIPS in a valid IP address. The setup you are
> trying to do with OpenSIPS behind NAT is possible, but it is even more
> complex. ****
>
>
> ****
>
> Flavio E. Goncalves****
>
>  ****
>
> ** **
>
> 2013/1/3 Mark Currie <mark at ziliant.com>****
>
> Hi,
>
> I have a very simple setup for a closed network of users (all NAT'ed) with
> one OpenSIPS server (also NAT'ed).
>
> I have managed to solve my first problem with registration by following
> previous posts and using fix_nat_register(), but I am still having problems
> with NAT issues during a call. I know that I probably need to use
> fix_nat_contact() and fix_nat_sip() but I can't figure out how to use these
> properly through the documentation.
>
> I have tried to search for examples of opensips.cfg that suit my scenario
> but all the ones I found are complicated with proxies etc. Can someone
> point
> me to simple example of opensips.cfg that takes care of NAT?
>
> Regards
> Mark Currie
>
>
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>
> ** **
>
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