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<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Hi Brett,<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span lang=EN-GB
style='font-size:10.0pt;font-family:Arial;color:navy'>below an extract of my
opensips script file:<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span lang=EN-GB
style='font-size:10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span lang=EN-GB
style='font-size:10.0pt;font-family:Arial;color:navy'>if the message is a
INVITE:<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span lang=EN-GB
style='font-size:10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span lang=EN-GB
style='font-size:10.0pt;font-family:Arial;color:navy'>use_media_proxy();<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span lang=EN-GB
style='font-size:10.0pt;font-family:Arial;color:navy'>t_on_branch("1");<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span lang=EN-GB
style='font-size:10.0pt;font-family:Arial;color:navy'>t_on_reply(“<st1:metricconverter
ProductID="1”" w:st="on">1”</st1:metricconverter>);<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span lang=EN-GB
style='font-size:10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span lang=EN-GB
style='font-size:10.0pt;font-family:Arial;color:navy'>onreply_route[1]<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span lang=EN-GB
style='font-size:10.0pt;font-family:Arial;color:navy'>{<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span lang=EN-GB
style='font-size:10.0pt;font-family:Arial;color:navy'> if
(t_check_status("200"))<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span lang=EN-GB
style='font-size:10.0pt;font-family:Arial;color:navy'> {<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span lang=EN-GB
style='font-size:10.0pt;font-family:Arial;color:navy'>
fix_nated_sdp("3", "xxx.yyy.zzz.204"); #public IP address<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span lang=EN-GB
style='font-size:10.0pt;font-family:Arial;color:navy'> }<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span lang=EN-GB
style='font-size:10.0pt;font-family:Arial;color:navy'>}<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span lang=EN-GB
style='font-size:10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span lang=EN-GB
style='font-size:10.0pt;font-family:Arial;color:navy'>branch_route[1]<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span lang=EN-GB
style='font-size:10.0pt;font-family:Arial;color:navy'>{<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span lang=EN-GB
style='font-size:10.0pt;font-family:Arial;color:navy'>
if(has_body("application/sdp")) {<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span lang=EN-GB
style='font-size:10.0pt;font-family:Arial;color:navy'>
xlog("L_INFO","MESSAGE BODY <$mb>\n");<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span lang=EN-GB
style='font-size:10.0pt;font-family:Arial;color:navy'> fix_nated_sdp("3",
"172.30.0.205");<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span lang=EN-GB
style='font-size:10.0pt;font-family:Arial;color:navy'>
xlog("L_INFO","MESSAGE BODY <$mb>\n");<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span lang=EN-GB
style='font-size:10.0pt;font-family:Arial;color:navy'> }<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span lang=EN-GB
style='font-size:10.0pt;font-family:Arial;color:navy'>}<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span lang=EN-GB
style='font-size:10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span lang=EN-GB
style='font-size:10.0pt;font-family:Arial;color:navy'>So I don’t use the
use_media_proxy twice… But I think that the problem is created by using the fix_nated_sdp
and the use_media_proxy function.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span lang=EN-GB
style='font-size:10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span lang=EN-GB
style='font-size:10.0pt;font-family:Arial;color:navy'>But I don’t understand
why…<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span lang=EN-GB
style='font-size:10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span lang=EN-GB
style='font-size:10.0pt;font-family:Arial;color:navy'>Thanks <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span lang=EN-GB
style='font-size:10.0pt;font-family:Arial;color:navy'> MD<o:p></o:p></span></font></p>
<div>
<div class=MsoNormal align=center style='text-align:center'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'>
<hr size=2 width="100%" align=center tabindex=-1>
</span></font></div>
<p class=MsoNormal><b><font size=2 face=Tahoma><span style='font-size:10.0pt;
font-family:Tahoma;font-weight:bold'>Da:</span></font></b><font size=2
face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'> Brett Nemeroff
[mailto:brett@nemeroff.com] <br>
<b><span style='font-weight:bold'>Inviato:</span></b> mercoledė 13 maggio 2009
15:44<br>
<b><span style='font-weight:bold'>A:</span></b> Mauro Davi’<br>
<b><span style='font-weight:bold'>Cc:</span></b> users@lists.opensips.org<br>
<b><span style='font-weight:bold'>Oggetto:</span></b> Re: [OpenSIPS-Users]
Media Proxy between LAN and WAN</span></font><o:p></o:p></p>
</div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>Mauro,<o:p></o:p></span></font></p>
<div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>This effect:<o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><span class=apple-style-span><font size=3 face=Arial><span
style='font-size:12.0pt;font-family:Arial'>c=IN IP4 0.0.0.0172.30.0.205</span></font></span><o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><span class=apple-style-span><font size=3
face="Times New Roman"><span style='font-size:12.0pt'>Where you get two ips
shoved together, is usually the result of calling use_media_proxy (or whatever
function you are using) more than once.</span></font></span><o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><span class=apple-style-span><font size=3
face="Times New Roman"><span style='font-size:12.0pt'>Of course, the 0.0.0.0 in
there is a problem, you need a real IP</span></font></span><o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><span class=apple-style-span><font size=3
face="Times New Roman"><span style='font-size:12.0pt'>-Brett</span></font></span><o:p></o:p></p>
</div>
<div>
<p class=MsoNormal style='margin-bottom:12.0pt'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'><o:p> </o:p></span></font></p>
<div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>On Wed, May 13, 2009 at 4:20 AM, Mauro Davi' <<a
href="mailto:mauro.davi@acotel.com">mauro.davi@acotel.com</a>> wrote:<o:p></o:p></span></font></p>
<div link=blue vlink=purple>
<div>
<p><font size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>Hi
All,</span></font><o:p></o:p></p>
<p><font size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'> </span></font><o:p></o:p></p>
<p><font size=2 face=Arial><span lang=EN-GB style='font-size:10.0pt;font-family:
Arial'>I have a Media Proxy installed in our VoIP platform. The Media Proxy
machine have 2 Network card, one on a Private LAN the other on a WAN.</span></font><o:p></o:p></p>
<p><font size=2 face=Arial><span lang=EN-GB style='font-size:10.0pt;font-family:
Arial'>Now I configured the Media-Relay with the IP address 0.0.0.0 to listen
to all the interfaces.</span></font><o:p></o:p></p>
<p><font size=2 face=Arial><span lang=EN-GB style='font-size:10.0pt;font-family:
Arial'> </span></font><o:p></o:p></p>
<p><font size=2 face=Arial><span lang=EN-GB style='font-size:10.0pt;font-family:
Arial'>On opensips when then INVITE came from a UA directed to an internal network
element (like PSTN Gateway or IVR) I want to manipulate the connection
information in the SDP message content with the private IP address.</span></font><o:p></o:p></p>
<p><font size=2 face=Arial><span lang=EN-GB style='font-size:10.0pt;font-family:
Arial'> </span></font><o:p></o:p></p>
<p><font size=2 face=Arial><span lang=EN-GB style='font-size:10.0pt;font-family:
Arial'>On the 200 OK I want to manipulate the connection information in the SDP
message content with the public IP address.</span></font><o:p></o:p></p>
<p><font size=2 face=Arial><span lang=EN-GB style='font-size:10.0pt;font-family:
Arial'> </span></font><o:p></o:p></p>
<p><font size=2 face=Arial><span lang=EN-GB style='font-size:10.0pt;font-family:
Arial'>In this way I hope that the Media Relay can work correctly…</span></font><o:p></o:p></p>
<p><font size=2 face=Arial><span lang=EN-GB style='font-size:10.0pt;font-family:
Arial'> </span></font><o:p></o:p></p>
<p><font size=2 face=Arial><span lang=EN-GB style='font-size:10.0pt;font-family:
Arial'>But I have a problem, when I use the fix_nated_sdp (after the
use_media_proxy function) on the INVITE sent to the Gateway I obtain the
following SDP result:</span></font><o:p></o:p></p>
<p><font size=2 face=Arial><span lang=EN-GB style='font-size:10.0pt;font-family:
Arial'> </span></font><o:p></o:p></p>
<p><font size=2 face=Arial><span lang=EN-GB style='font-size:10.0pt;font-family:
Arial'> </span></font><o:p></o:p></p>
<p><font size=2 face=Arial><span lang=EN-GB style='font-size:10.0pt;font-family:
Arial'>v=0</span></font><o:p></o:p></p>
<p><font size=2 face=Arial><span lang=EN-GB style='font-size:10.0pt;font-family:
Arial'>o=- 0 <st1:metricconverter ProductID="2 IN" w:st="on">2 IN</st1:metricconverter>
IP4 192.168.193.54</span></font><o:p></o:p></p>
<p><font size=2 face=Arial><span lang=EN-GB style='font-size:10.0pt;font-family:
Arial'>s=CounterPath Bria</span></font><o:p></o:p></p>
<p><font size=2 face=Arial><span lang=EN-GB style='font-size:10.0pt;font-family:
Arial'>c=IN IP4 0.0.0.0172.30.0.205</span></font><o:p></o:p></p>
<p><font size=2 face=Arial><span lang=EN-GB style='font-size:10.0pt;font-family:
Arial'>t=0 0</span></font><o:p></o:p></p>
<p><font size=2 face=Arial><span lang=EN-GB style='font-size:10.0pt;font-family:
Arial'>m=audio 30058 RTP/AVP 0 101</span></font><o:p></o:p></p>
<p><font size=2 face=Arial><span lang=EN-GB style='font-size:10.0pt;font-family:
Arial'>a=sendrecv</span></font><o:p></o:p></p>
<p><font size=2 face=Arial><span lang=EN-GB style='font-size:10.0pt;font-family:
Arial'>a=rtpmap:101 telephone-event/8000</span></font><o:p></o:p></p>
<p><font size=2 face=Arial><span lang=EN-GB style='font-size:10.0pt;font-family:
Arial'>a=fmtp:101 0-15</span></font><o:p></o:p></p>
<p><font size=2 face=Arial><span lang=EN-GB style='font-size:10.0pt;font-family:
Arial'>a=x-rtp-session-id:EC003DF02E154A31AE923BD612B55FE7</span></font><o:p></o:p></p>
<p><font size=2 face=Arial><span lang=EN-GB style='font-size:10.0pt;font-family:
Arial'>a=direction:active</span></font><o:p></o:p></p>
<p><font size=2 face=Arial><span lang=EN-GB style='font-size:10.0pt;font-family:
Arial'>a=oldmediaip:192.168.193.54</span></font><o:p></o:p></p>
<p><font size=2 face=Arial><span lang=EN-GB style='font-size:10.0pt;font-family:
Arial'> </span></font><o:p></o:p></p>
<p><font size=2 face=Arial><span lang=EN-GB style='font-size:10.0pt;font-family:
Arial'>the private IP address 172.30.0.205 is prefixed by the 0.0.0.0 inserted
I think by the mediaproxy module.</span></font><o:p></o:p></p>
<p><font size=2 face=Arial><span lang=EN-GB style='font-size:10.0pt;font-family:
Arial'> </span></font><o:p></o:p></p>
<p><font size=2 face=Arial><span lang=EN-GB style='font-size:10.0pt;font-family:
Arial'>There is a way to solve this problem?</span></font><o:p></o:p></p>
<p><font size=2 face=Arial><span lang=EN-GB style='font-size:10.0pt;font-family:
Arial'> </span></font><o:p></o:p></p>
<p><font size=2 face=Arial><span lang=EN-GB style='font-size:10.0pt;font-family:
Arial'>Any suggestion?</span></font><o:p></o:p></p>
<p><font size=2 face=Arial><span lang=EN-GB style='font-size:10.0pt;font-family:
Arial'> </span></font><o:p></o:p></p>
<p><font size=2 face=Arial><span lang=EN-GB style='font-size:10.0pt;font-family:
Arial'>Thanks in Advance</span></font><o:p></o:p></p>
<p><font size=3 face="Times New Roman"><span lang=EN-GB style='font-size:12.0pt'>
MD</span><o:p></o:p></font></p>
<p><font size=3 face="Times New Roman"><span style='font-size:12.0pt'> <o:p></o:p></span></font></p>
</div>
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<p class=MsoNormal style='margin-bottom:12.0pt'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'><br>
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Users mailing list<br>
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target="_blank">http://lists.opensips.org/cgi-bin/mailman/listinfo/users</a><o:p></o:p></span></font></p>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
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