[Users] RE: E: Replication Issue with UACs behind NAT

You were right. I found this email http://www.mail-archive.com/devel@openser.org/msg01288.html regarding what we're talking about. Now I tried it using the fix_nated_register in the proxy B that receive the replicated message to store the IP address and port of the proxy A and it works fine. When proxy B receives an INVITE to the given location, it sends the request to proxy A.

Now I'm going to test the configuration and clean it. How and where can I publish this configuration after I have tested it? This is an important topic and I didn't found a configuration example, also I have read emails asking for it.

Thanks again

-----Mensaje original----- De: Helge Waastad [mailto:helge@smartnet.no] Enviado el: 20 de Marzo de 2006 3:03 p.m. Para: Dioris Moreno CC: users@openser.org Asunto: Re: E: Replication Issue with UACs behind NAT

Hi, I might be mistaken, but I do belive the socket-info is only useful when U have several interfaces on one proxy and you need to route out the right interface on that particular proxy.

br hw

man, 20,.03.2006 kl. 14.40 -0500, skrev Dioris Moreno:

Thanks a lot.

I was checking the use of sock_flag and add_sock_hdr to accomplish

what

you explain (UAC1->P1->P2->UAC2).

I added to my configuration file the following lines to the module parameters section

modparam("registrar", "sock_flag", 18) modparam("registrar", "sock_hdr_name", "Sock-Info")

Also, I added add_sock_hdr before replicating the REGISTER messages in both proxies to include the socket IP and port of the proxy which validate the user.

add_sock_hdr("Sock-Info"); t_replicate("AAA.BBB.CCC.DDD", "5060");

And, I added setflag(18) before saving the location to save the

original

sock-info and not the current. However, I didn't see the original

socket

info in the location table, instead I see in the table the socket IP

and

port of the local server.

if (search("^Contact:.*;received=")) { setflag(6); }; setflag(18); save("location");

Is this the way it should be doing? Am I in the right direction?

Thank you

-----Mensaje original----- De: Helge Waastad [mailto:helge@smartnet.no] Enviado el: 20 de Marzo de 2006 12:58 p.m. Para: nesken@gmail.com CC: users@openser.org Asunto: RE: Replication Issue with UACs behind NAT

Hi,

The problem with NAT (and btw firewalls aswell), unless you are static NAT'in outside-inside, the NAT relation between the UAC and OpenSER is strictly between the two.

The NAT router will se a packet coming to the right ip:port but not

from

the correct ip:port...

In short, if UAC1 -> P1 and UAC2-P2, an invite should follow:

UAC1->P1->P2->UAC2

br hw