[OpenSIPS-Users] ACK on private IP, NAT

[Miha]

HI,

Problem is that I am relaying call throught FS and I guess I am arming 
on_replay_route on wrong spot. I am arming it when call is send to UAC.

Here is my replay_route:

onreply_route[1] {
         xlog("on replay");
        if (client_nat_test("3")) {
                 xlog("L_INFO", "NAT Reply\n");
                 fix_contact();
         }
         exit;
}


here is a sip trace:

U UAC_PUBLIC_IP:1079 -> opensips_ip:5060
SIP/2.0 200 OK.
Via: SIP/2.0/UDP opensips_ip:5060;branch=z9hG4bK13dc.ad5b3917.0.
Via: SIP/2.0/UDP 
FS_IP:5080;received=FS_IP;rport=5080;branch=z9hG4bKj26KZH1XvKm9p.
Record-Route: 
<sip:opensips_ip;lr;ftag=c8N0ZtF52D3vF;vsf=AAAAAAMLBwYFAAACA3cFcQAfAx0fARoLGg8eNjA-;did=b88.c27c8733>.
From: "031545477" <sip:44431545477 at FS_IP>;tag=c8N0ZtF52D3vF.
To: <sip:44418108754 at opensips_ip>;tag=581792008.
Call-ID: 65b7d8a0-fc4c-1231-bb95-005056b2fe3d.
CSeq: 54766485 INVITE.
Contact: <sip:44418108754 at 10.105.15.67:5060>.
Supported: replaces, path, timer.
User-Agent: Grandstream GXP1405 1.0.5.32.
Allow: INVITE, ACK, OPTIONS, CANCEL, BYE, SUBSCRIBE, NOTIFY, INFO, 
REFER, UPDATE, MESSAGE.
Content-Type: application/sdp.
Content-Length:   242.
.
v=0.
o=44418108754 8000 8000 IN IP4 10.105.15.67.
s=SIP Call.
c=IN IP4 10.105.15.67.
t=0 0.
m=audio 5004 RTP/AVP 8 0 101.
a=sendrecv.
a=rtpmap:8 PCMA/8000.
a=ptime:20.
a=rtpmap:0 PCMU/8000.
a=rtpmap:101 telephone-event/8000.
a=fmtp:101 0-15.


U opensips_ip:5060 -> FS_IP:5080
SIP/2.0 200 OK.
Via: SIP/2.0/UDP 
FS_IP:5080;received=FS_IP;rport=5080;branch=z9hG4bKj26KZH1XvKm9p.
Record-Route: 
<sip:opensips_ip;lr;ftag=c8N0ZtF52D3vF;vsf=AAAAAAMLBwYFAAACA3cFcQAfAx0fARoLGg8eNjA-;did=b88.c27c8733>.
From: "031545477" <sip:031545477 at FS_IP>;tag=c8N0ZtF52D3vF.
To: <sip:44418108754 at opensips_ip>;tag=581792008.
Call-ID: 65b7d8a0-fc4c-1231-bb95-005056b2fe3d.
CSeq: 54766485 INVITE.
Contact: <sip:44418108754 at 10.105.15.67:5060>.
Supported: replaces, path, timer.
User-Agent: Grandstream GXP1405 1.0.5.32.
Allow: INVITE, ACK, OPTIONS, CANCEL, BYE, SUBSCRIBE, NOTIFY, INFO, 
REFER, UPDATE, MESSAGE.
Content-Type: application/sdp.
Content-Length:   242.
.
v=0.
o=44418108754 8000 8000 IN IP4 10.105.15.67.
s=SIP Call.
c=IN IP4 10.105.15.67.
t=0 0.
m=audio 5004 RTP/AVP 8 0 101.
a=sendrecv.
a=rtpmap:8 PCMA/8000.
a=ptime:20.
a=rtpmap:0 PCMU/8000.
a=rtpmap:101 telephone-event/8000.
a=fmtp:101 0-15.


U FS_IP:5080 -> opensips_ip:5060
ACK sip:44418108754 at 10.105.15.67:5060 SIP/2.0.
Via: SIP/2.0/UDP FS_IP:5080;rport;branch=z9hG4bKKB0c1cj1Svavj.
Route: 
<sip:opensips_ip;lr;ftag=c8N0ZtF52D3vF;vsf=AAAAAAMLBwYFAAACA3cFcQAfAx0fARoLGg8eNjA-;did=b88.c27c8733>.
Max-Forwards: 70.
From: "031545477" <sip:031545477 at FS_IP>;tag=c8N0ZtF52D3vF.
To: <sip:44418108754 at opensips_ip>;tag=581792008.
Call-ID: 65b7d8a0-fc4c-1231-bb95-005056b2fe3d.
CSeq: 54766485 ACK.
Contact: <sip:mod_sofia at FS_IP:5080>.
Content-Length: 0.
.


U opensips_ip:5060 -> 10.105.15.67:5060
ACK sip:44418108754@*10.105.15.67*:5060 SIP/2.0.
Via: SIP/2.0/UDP opensips_ip:5060;branch=z9hG4bK13dc.ad5b3917.2.
Via: SIP/2.0/UDP 
FS_IP:5080;received=FS_IP;rport=5080;branch=z9hG4bKKB0c1cj1Svavj.
Max-Forwards: 69.
From: "031545477" <sip:44431545477 at FS_IP>;tag=c8N0ZtF52D3vF.
To: <sip:44418108754 at opensips_ip>;tag=581792008.
Call-ID: 65b7d8a0-fc4c-1231-bb95-005056b2fe3d.
CSeq: 54766485 ACK.
Contact: <sip:mod_sofia at FS_IP:5080>.
Content-Length: 0.

Dne 1/17/2014 2:13 PM, pis(e Miha:
> Hi,
>
> in my config I have:
>
>       if (nat_uac_test("18")) {
>         xlog("fixing nat");
>                 if (method=="REGISTER") {
>                         fix_nated_register();
>                         fix_nated_contact();
>                 } else {
>                         fix_nated_contact();
>                 };
>                 force_rport();
>         };
>
>
> In location table I can see that ip:port is saved from source ip:port 
> and not from contact which is good (contact has private_ip). Invites 
> are also send to right ip:port. Problem is that ACK is send to private 
> ip instead to public_ip:port.
>
> What I am missing?
>
> br
> miha
>
>
> _______________________________________________
> Users mailing list
> Users at lists.opensips.org
> http://lists.opensips.org/cgi-bin/mailman/listinfo/users
>

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