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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 David,</span></font><span
class=style131><font size=2 color="#00204e" face="Arial Narrow"><span
style='font-size:10.0pt;font-family:"Arial Narrow";color:#00204E'><o:p></o:p></span></font></span></p>
<p class=MsoNormal><span class=style131><font size=2 color="#00204e"
face="Arial Narrow"><span style='font-size:10.0pt;font-family:"Arial Narrow";
color:#00204E'><o:p> </o:p></span></font></span></p>
<p class=MsoNormal><span class=style131><font size=2 color="#00204e"
face="Arial Narrow"><span style='font-size:10.0pt;font-family:"Arial Narrow";
color:#00204E'>Thanks for the reply. That’s pretty much what I’ve
already tried, but with no luck on the production machines. In testing it
worked, but the public IPs and single NICs were causing issues (we believe)<o:p></o:p></span></font></span></p>
<p class=MsoNormal><span class=style131><font size=2 color="#00204e"
face="Arial Narrow"><span style='font-size:10.0pt;font-family:"Arial Narrow";
color:#00204E'>So I was looking for a proxy-type solution.<o:p></o:p></span></font></span></p>
<p class=MsoNormal><span class=style131><font size=2 color="#00204e"
face="Arial Narrow"><span style='font-size:10.0pt;font-family:"Arial Narrow";
color:#00204E'><o:p> </o:p></span></font></span></p>
<p class=MsoNormal><st1:City w:st="on"><st1:place w:st="on"><span
class=style131><font size=2 color="#00204e" face="Arial Narrow"><span
style='font-size:10.0pt;font-family:"Arial Narrow";color:#00204E'>Adrian</span></font></span></st1:place></st1:City><span
class=style131><font size=2 color="#00204e" face="Arial Narrow"><span
style='font-size:10.0pt;font-family:"Arial Narrow";color:#00204E'><o:p></o:p></span></font></span></p>
<p class=MsoNormal><font size=2 color="#00204e" face="Arial Narrow"><span
style='font-size:10.0pt;font-family:"Arial Narrow";color:#00204E'><o:p> </o:p></span></font></p>
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<p class=MsoNormal><b><font size=2 face=Tahoma><span style='font-size:10.0pt;
font-family:Tahoma;font-weight:bold'>From:</span></font></b><font size=2
face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'> asterisk-users-bounces@lists.digium.com
[mailto:asterisk-users-bounces@lists.digium.com] <b><span style='font-weight:
bold'>On Behalf Of </span></b>David Gibbons<br>
<b><span style='font-weight:bold'>Sent:</span></b> 13 May 2009 15:37<br>
<b><span style='font-weight:bold'>To:</span></b> '<st1:PersonName w:st="on">Asterisk
Users Mailing List - Non-Commercial Discussion</st1:PersonName>'<br>
<b><span style='font-weight:bold'>Subject:</span></b> Re: [asterisk-users]
Proxying from one server to another</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=2 color="#1f497d" face=Calibri><span
style='font-size:11.0pt;font-family:Calibri;color:#1F497D'>Redirect traffic
with iptables like this:<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color="#1f497d" face=Calibri><span
style='font-size:11.0pt;font-family:Calibri;color:#1F497D'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color="#1f497d" face=Calibri><span
style='font-size:11.0pt;font-family:Calibri;color:#1F497D'>Host ~# iptables -t
nat -I PREROUTING -d OLD_PUBLIC_IP -j DNAT --to NEW_PUBLIC_IP<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color="#1f497d" face=Calibri><span
style='font-size:11.0pt;font-family:Calibri;color:#1F497D'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color="#1f497d" face=Calibri><span
style='font-size:11.0pt;font-family:Calibri;color:#1F497D'>I’m not sure
if this will work for SIP. You may need the proxy to change info in the sip
messages between server and client.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color="#1f497d" face=Calibri><span
style='font-size:11.0pt;font-family:Calibri;color:#1F497D'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color="#1f497d" face=Calibri><span
style='font-size:11.0pt;font-family:Calibri;color:#1F497D'>--Dave<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color="#1f497d" face=Calibri><span
style='font-size:11.0pt;font-family:Calibri;color:#1F497D'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color="#1f497d" face=Calibri><span
style='font-size:11.0pt;font-family:Calibri;color:#1F497D'><o:p> </o:p></span></font></p>
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<p class=MsoNormal><b><font size=2 face=Tahoma><span style='font-size:10.0pt;
font-family:Tahoma;font-weight:bold'>From:</span></font></b><font size=2
face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'>
asterisk-users-bounces@lists.digium.com
[mailto:asterisk-users-bounces@lists.digium.com] <b><span style='font-weight:
bold'>On Behalf Of </span></b><st1:PersonName w:st="on">Adrian Marsh</st1:PersonName><br>
<b><span style='font-weight:bold'>Sent:</span></b> Wednesday, May 13, 2009 8:55
AM<br>
<b><span style='font-weight:bold'>To:</span></b> asterisk-users@lists.digium.com<br>
<b><span style='font-weight:bold'>Subject:</span></b> [asterisk-users] Proxying
from one server to another<o:p></o:p></span></font></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>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'>Hi All,<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'>I’m trying to find a software package to do the
following sip proxy work:<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'>I’ve an A*k server A that needs to be
decommissioned, from the <st1:country-region w:st="on">USA</st1:country-region>,
and replaced by server B, in the <st1:country-region w:st="on"><st1:place
w:st="on">UK</st1:place></st1:country-region>. Both servers are on public
internet IPs.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'>Whilst the client migration happens, I want to divert
all the Register traffic from Server A to Server B to catch any clients still
left out there.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'>Unfortunately, the original Clients were configured
with static IPs instead of DNS names for the SIP Registrar, so I have to proxy
Server A until all the clients have been updated (which might be a long time).<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'>Obviously A*k itself wont do this (as far as I
know). I’ve looked at siproxyd and party-sip, but with no success
so far.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'>I’ve also tried using IPtables to redirect at
the IP level, but the public IP ranges seem to stop me from achieving this. It
works in my local-lan testing, but not on the public servers.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'>Any ideas?<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'>Thanks,<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><st1:City w:st="on"><st1:place w:st="on"><font size=2
face=Arial><span lang=EN-GB style='font-size:10.0pt;font-family:Arial'>Adrian</span></font></st1:place></st1:City><font
size=2 face=Arial><span lang=EN-GB style='font-size:10.0pt;font-family:Arial'><o:p></o:p></span></font></p>
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