12 Dec
2006
12 Dec
'06
4:42 p.m.
So does that mean my GW is ignoring the record-route section? ( FYI, I
control the gateway also, it is a Metaswitch)
The reason I think this is working is because I am just doing the same NAT
Test that is used to determine if nat=yes should be set and setting it so
that it will pass the same test. At least I think that is what it is doing.
:-)
Natambu Obleton
Network Engineer
FastTrack Communications
nobleton(a)fasttrackcomm.net
(970) 247-3366 office
(970) 247-2426 fax
_____
From: Greger V. Teigre [mailto:greger@teigre.com]
Sent: Tuesday, December 12, 2006 4:25 AM
To: Natambu Obleton
Cc: serusers(a)iptel.org
Subject: Re: [Serusers] reinvite problem...
Yes, this is a known issue, but the solution depends on how you optimize you
rtp handling (active media). The INVITE from your GW will not be NATed and
as the INVITE is loose route, no lookup("location") is done to see if the
dst UA is NATed. However, this is what the nat=yes flag is supposed to be
used for, to mark the dialog as NATed. Thus, the Route set from your GW
should contain nat=yes and this will cause the right flag to be set for the
INVITE.
Doing it in the onreply route should not work, because you need to make sure
that both the INVITE from the GW and the OK from the UA are handled as rtp
proxy forked. I'm not sure why it works, maybe you force rtp proxy for too
many calls? (calls to the GW from NATed UAs except symmetric NATs can go
without rtp proxy).
g-)
Natambu Obleton wrote:
After a crap load of tracing and putting log(I am here\n) all over the
config file I think I may of gotten it working?
I started with the gettingstarted gw-pstn.cfg file and made this change
I edited my onreply route[1] to setflag(6)..
onreply_route[1] {
log("******************************ONREPLY ROUTE[1]\n");
Added: if (!search("^Contact:[ ]*\*") &&
client_nat_test("7")) {
Added: log("******************************ONREPLY ROUTE[1]
set_flag\n");
Added: setflag(6);
Added: }
if ((isflagset(6) || isflagset(7)) &&
(status=~"(180)|(183)|2[0-9][0-9]")) {
log("******************************ONREPLY ROUTE[1]
flag_set\n");
if (!search("^Content-Length:[ ]*0")) {
use_media_proxy();
log("******************************ONREPLY ROUTE[1]
use_media_proxy\n");
};
};
if (client_nat_test("1")) {
log("******************************ONREPLY ROUTE[1]
fix_nated_contact\n");
fix_nated_contact();
};
}
Natambu Obleton
Network Engineer
FastTrack Communications
nobleton(a)fasttrackcomm.net
(970) 247-3366 office
(970) 247-2426 fax
_____
From: serusers-bounces(a)lists.iptel.org
[mailto:serusers-bounces@lists.iptel.org] On Behalf Of Natambu Obleton
Sent: Monday, December 11, 2006 10:19 AM
To: serusers(a)iptel.org
Subject: [Serusers] reinvite problem...
Ok. I have SER working with mediaproxy and it rewrites the requests to goto
the Mediaproxy server as it should, but after a call has been up for a bit..
it gets another invite from my PSTN gateway and when this invite comes
through it doesnt rewrite the media addresses why?
My config:
http://laplata.fasttrackcomm.net/ser_cfg.txthttp://laplata.fasttrackcomm.net
/ser_cfg.txt
<http://laplata.fasttrackcomm.net/ser_cfg.txthttp:/laplata.fasttrackcomm.net
/ser_cfg.txt>
My transaction log:
http://laplata.fasttrackcomm.net/translog.txt
About ¾s of the way down you will see where 206.123.213.84 sends another
invite for the call and SER doesnt change the media information on it.
Thanks for your help.
Natambu Obleton
Network Engineer
FastTrack Communications
nobleton(a)fasttrackcomm.net
(970) 247-3366 office
(970) 247-2426 fax
_____
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