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Yes, and your network is in the RFC1918 (private) address space, so you
can use the same logic (even without change as you want to proxy when
the address is on your network).<br>
g-)<br>
<br>
İlker Aktuna (Koç.net) wrote:
<blockquote cite="mid7EB6E3B0D22DF54585D1CEB9642E3198D85C7C@owa.koc.net"
type="cite">
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<div dir="ltr" align="left"><span class="970384110-20062006"><font
color="#0000ff" face="Arial" size="2">In fact, I am not looking for
"if address is NATed or not", I need to check if address belongs to my
network or not.</font></span></div>
<div dir="ltr" align="left"><span class="970384110-20062006"></span> </div>
<div dir="ltr" align="left"><span class="970384110-20062006"><font
color="#0000ff" face="Arial" size="2">what do you mean by RFC1918
addresses ?</font></span></div>
<div dir="ltr" align="left"><span class="970384110-20062006"></span> </div>
<div dir="ltr" align="left"><span class="970384110-20062006"><font
color="#0000ff" face="Arial" size="2">Thanks,</font></span></div>
<div dir="ltr" align="left"><span class="970384110-20062006"><font
color="#0000ff" face="Arial" size="2">ilker</font></span></div>
<br>
<div class="OutlookMessageHeader" dir="ltr" align="left" lang="en-us">
<hr tabindex="-1"><font face="Tahoma" size="2"><b>From:</b> Greger V.
Teigre [<a class="moz-txt-link-freetext" href="mailto:greger@teigre.com">mailto:greger@teigre.com</a>] <br>
<b>Sent:</b> Tuesday, June 20, 2006 1:40 PM<br>
<b>To:</b> İlker Aktuna (Koç.net)<br>
<b>Cc:</b> <a class="moz-txt-link-abbreviated" href="mailto:serusers@iptel.org">serusers@iptel.org</a><br>
<b>Subject:</b> Re: [Serusers] checking source ip and dest ip<br>
</font><br>
</div>
Why not test for RFC1918 addresses? That's what the onsip.org
nat-handling scripts do. A NATed destination is determined by a flag in
the location record and the src ip is checked with nat_uac_test(). It
will give a more robust NAT handling that testing on IP addresses for
parts of the RFC1918 addresses. <br>
The problem has already been solved, why not reuse? ;-)<br>
g-)<br>
<br>
İlker Aktuna (Koç.net) wrote:
<blockquote
cite="mid7EB6E3B0D22DF54585D1CEB9642E3198D85C7A@owa.koc.net"
type="cite">
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<div><span class="589102510-20062006"><font color="#0000ff"
face="Arial" size="2">Hi,</font></span></div>
<div><span class="589102510-20062006"></span> </div>
<div><span class="589102510-20062006"><font color="#0000ff"
face="Arial" size="2">I need to check source ip of a SIP message and
also destination IP to which the message will be sent.</font></span></div>
<div><span class="589102510-20062006"><font color="#0000ff"
face="Arial" size="2">i.e. I will use mediaproxy only if the one of
the ip addresses match 10.0.0.0 / 255.0.0.0</font></span></div>
<div><span class="589102510-20062006"></span> </div>
<div><span class="589102510-20062006"><font color="#0000ff"
face="Arial" size="2">is it possible ?</font></span></div>
<div><span class="589102510-20062006"></span> </div>
<div><span class="589102510-20062006"><font color="#0000ff"
face="Arial" size="2">Thanks,</font></span></div>
<div><span class="589102510-20062006"><font color="#0000ff"
face="Arial" size="2">ilker</font></span></div>
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<div dir="ltr" align="left"><span class="970384110-20062006"><font
color="#0000ff" face="Arial" size="2">In fact, I am not looking for
"if address is NATed or not", I need to check if address belongs to my
network or not.</font></span></div>
<div dir="ltr" align="left"><span class="970384110-20062006"></span> </div>
<div dir="ltr" align="left"><span class="970384110-20062006"><font
color="#0000ff" face="Arial" size="2">what do you mean by RFC1918
addresses ?</font></span></div>
<div dir="ltr" align="left"><span class="970384110-20062006"></span> </div>
<div dir="ltr" align="left"><span class="970384110-20062006"><font
color="#0000ff" face="Arial" size="2">Thanks,</font></span></div>
<div dir="ltr" align="left"><span class="970384110-20062006"><font
color="#0000ff" face="Arial" size="2">ilker</font></span></div>
<br>
<div class="OutlookMessageHeader" dir="ltr" align="left"
lang="en-us">
<hr tabindex="-1"><font face="Tahoma" size="2"><b>From:</b> Greger
V. Teigre [<a class="moz-txt-link-freetext" href="mailto:greger@teigre.com">mailto:greger@teigre.com</a>] <br>
<b>Sent:</b> Tuesday, June 20, 2006 1:40 PM<br>
<b>To:</b> İlker Aktuna (Koç.net)<br>
<b>Cc:</b> <a class="moz-txt-link-abbreviated" href="mailto:serusers@iptel.org">serusers@iptel.org</a><br>
<b>Subject:</b> Re: [Serusers] checking source ip and dest ip<br>
</font><br>
</div>
Why not test for RFC1918 addresses? That's what the onsip.org
nat-handling scripts do. A NATed destination is determined by a flag in
the location record and the src ip is checked with nat_uac_test(). It
will give a more robust NAT handling that testing on IP addresses for
parts of the RFC1918 addresses. <br>
The problem has already been solved, why not reuse? ;-)<br>
g-)<br>
<br>
İlker Aktuna (Koç.net) wrote:
<blockquote
cite="mid7EB6E3B0D22DF54585D1CEB9642E3198D85C7A@owa.koc.net"
type="cite">
<meta http-equiv="EXPIRES" content="0">
<meta http-equiv="EXPIRESABSOLUTE"
content="Tue, 01 Jun 1999 12:00:00 GMT">
<meta http-equiv="PRAGMA" content="NO-CACHE">
<meta http-equiv="CACHE-CONTROL" content="PRIVATE">
<meta http-equiv="CACHE-CONTROL" content="NO-CACHE">
<meta content="MSHTML 6.00.2900.2838" name="GENERATOR">
<div>
<div><span class="589102510-20062006"><font color="#0000ff"
face="Arial" size="2">Hi,</font></span></div>
<div><span class="589102510-20062006"></span> </div>
<div><span class="589102510-20062006"><font color="#0000ff"
face="Arial" size="2">I need to check source ip of a SIP message and
also destination IP to which the message will be sent.</font></span></div>
<div><span class="589102510-20062006"><font color="#0000ff"
face="Arial" size="2">i.e. I will use mediaproxy only if the one of
the ip addresses match 10.0.0.0 / 255.0.0.0</font></span></div>
<div><span class="589102510-20062006"></span> </div>
<div><span class="589102510-20062006"><font color="#0000ff"
face="Arial" size="2">is it possible ?</font></span></div>
<div><span class="589102510-20062006"></span> </div>
<div><span class="589102510-20062006"><font color="#0000ff"
face="Arial" size="2">Thanks,</font></span></div>
<div><span class="589102510-20062006"><font color="#0000ff"
face="Arial" size="2">ilker</font></span></div>
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