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Thanks for the detailed trace, I wouldn't have spent on this without it
;-)<br>
<br>
Its' the ACK for the OK that is not done fix_nated_contact for. In
fact, checking the getting started rtpproxy file, it seems that this
error is also found there. All messages coming from behind NAT should
have the contact fixed.<br>
Strictly speaking, RFC3261 states that the dialog state should be
created from the information found in the INVITE, not the ACK on an OK.
Your BYE generating entity does this error. I have seen this problem
before, but has not really thought about it from the getting started
config file perspective. <br>
It is thus safer to change Contact on ALL messages behind NAT,
regardless of they are loose routed or not.<br>
g-)<br>
<br>
Fabio Macchi wrote:
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<p class="MsoNormal"><font color="navy" face="Arial" size="2"><span
style="font-size: 10pt; font-family: Arial; color: navy;">Hi Greger,<o:p></o:p></span></font></p>
<p class="MsoNormal"><font color="navy" face="Arial" size="2"><span
style="font-size: 10pt; font-family: Arial; color: navy;"><o:p> </o:p></span></font></p>
<p class="MsoNormal"><font color="navy" face="Arial" size="2"><span
style="font-size: 10pt; font-family: Arial; color: navy;" lang="EN-GB">I
attached an ethereal SIP
call trace of a test call ( summary and detailed, I simple maskerade
final ip
numbers ): below only the INVITE relayed from proxy to gateway:<o:p></o:p></span></font></p>
<p class="MsoNormal"><font color="navy" face="Arial" size="2"><span
style="font-size: 10pt; font-family: Arial; color: navy;" lang="EN-GB"><o:p> </o:p></span></font></p>
<p class="MsoNormal"><font color="navy" face="Arial" size="2"><span
style="font-size: 10pt; font-family: Arial; color: navy;" lang="EN-GB">Session
Initiation
Protocol<o:p></o:p></span></font></p>
<p class="MsoNormal"><font color="navy" face="Arial" size="2"><span
style="font-size: 10pt; font-family: Arial; color: navy;" lang="EN-GB">
Request-Line: INVITE <a class="moz-txt-link-abbreviated"
href="mailto:sip:9999001234@194.244.gatewayIP:5060">sip:9999001234@194.244.gatewayIP:5060</a>
SIP/2.0<o:p></o:p></span></font></p>
<p class="MsoNormal"><font color="navy" face="Arial" size="2"><span
style="font-size: 10pt; font-family: Arial; color: navy;" lang="EN-GB">
Method: INVITE<o:p></o:p></span></font></p>
<p class="MsoNormal"><font color="navy" face="Arial" size="2"><span
style="font-size: 10pt; font-family: Arial; color: navy;" lang="EN-GB">
[Resent Packet:
False]<o:p></o:p></span></font></p>
<p class="MsoNormal"><font color="navy" face="Arial" size="2"><span
style="font-size: 10pt; font-family: Arial; color: navy;" lang="EN-GB">
Message Header<o:p></o:p></span></font></p>
<p class="MsoNormal"><font color="navy" face="Arial" size="2"><span
style="font-size: 10pt; font-family: Arial; color: navy;" lang="EN-GB">
Record-Route:
<sip:194.244.Proxy__IP;ftag=12e1e2e19d527792;lr=on><o:p></o:p></span></font></p>
<p class="MsoNormal"><font color="navy" face="Arial" size="2"><span
style="font-size: 10pt; font-family: Arial; color: navy;" lang="EN-GB">
Via: SIP/2.0/UDP
194.244.Proxy__IP;branch=z9hG4bKb24f.5133a2c4.0<o:p></o:p></span></font></p>
<p class="MsoNormal"><font color="navy" face="Arial" size="2"><span
style="font-size: 10pt; font-family: Arial; color: navy;" lang="EN-GB">
Transport:
UDP<o:p></o:p></span></font></p>
<p class="MsoNormal"><font color="navy" face="Arial" size="2"><span
style="font-size: 10pt; font-family: Arial; color: navy;" lang="EN-GB">
Sent-by
Address: 194.244.Proxy__IP<o:p></o:p></span></font></p>
<p class="MsoNormal"><font color="navy" face="Arial" size="2"><span
style="font-size: 10pt; font-family: Arial; color: navy;" lang="EN-GB">
Branch:
z9hG4bKb24f.5133a2c4.0<o:p></o:p></span></font></p>
<p class="MsoNormal"><font color="navy" face="Arial" size="2"><span
style="font-size: 10pt; font-family: Arial; color: navy;" lang="EN-GB">
Via: SIP/2.0/UDP
1.255.ua_priv__IP;rport=1176;received=213.156.ua_pub_IP;branch=z9hG4bK35ca7adf63e3094f<o:p></o:p></span></font></p>
<p class="MsoNormal"><font color="navy" face="Arial" size="2"><span
style="font-size: 10pt; font-family: Arial; color: navy;" lang="EN-GB">
Transport:
UDP<o:p></o:p></span></font></p>
<p class="MsoNormal"><font color="navy" face="Arial" size="2"><span
style="font-size: 10pt; font-family: Arial; color: navy;" lang="EN-GB">
Sent-by
Address: 1.255.ua_priv__IP<o:p></o:p></span></font></p>
<p class="MsoNormal"><font color="navy" face="Arial" size="2"><span
style="font-size: 10pt; font-family: Arial; color: navy;" lang="EN-GB">
RPort: 1176<o:p></o:p></span></font></p>
<p class="MsoNormal"><font color="navy" face="Arial" size="2"><span
style="font-size: 10pt; font-family: Arial; color: navy;" lang="EN-GB">
Received:
213.156.ua_pub_IP<o:p></o:p></span></font></p>
<p class="MsoNormal"><font color="navy" face="Arial" size="2"><span
style="font-size: 10pt; font-family: Arial; color: navy;" lang="EN-GB">
Branch:
z9hG4bK35ca7adf63e3094f<o:p></o:p></span></font></p>
<p class="MsoNormal"><font color="navy" face="Arial" size="2"><span
style="font-size: 10pt; font-family: Arial; color: navy;" lang="EN-GB">
From:
"000003" <a class="moz-txt-link-rfc2396E"
href="mailto:sip:000003@194.244.Proxy__IP"><sip:000003@194.244.Proxy__IP></a>;tag=12e1e2e19d527792<o:p></o:p></span></font></p>
<p class="MsoNormal"><font color="navy" face="Arial" size="2"><span
style="font-size: 10pt; font-family: Arial; color: navy;" lang="EN-GB">
SIP Display
info: "000003" <o:p></o:p></span></font></p>
<p class="MsoNormal"><font color="navy" face="Arial" size="2"><span
style="font-size: 10pt; font-family: Arial; color: navy;" lang="EN-GB">
SIP from
address: <a class="moz-txt-link-abbreviated"
href="mailto:sip:000003@194.244.Proxy__IP">sip:000003@194.244.Proxy__IP</a><o:p></o:p></span></font></p>
<p class="MsoNormal"><font color="navy" face="Arial" size="2"><span
style="font-size: 10pt; font-family: Arial; color: navy;" lang="EN-GB">
</span></font><font color="navy" face="Arial" size="2"><span
style="font-size: 10pt; font-family: Arial; color: navy;">SIP tag:
12e1e2e19d527792<o:p></o:p></span></font></p>
<p class="MsoNormal"><font color="navy" face="Arial" size="2"><span
style="font-size: 10pt; font-family: Arial; color: navy;"> To: <a
class="moz-txt-link-rfc2396E"
href="mailto:sip:9999001234@194.244.Proxy__IP"><sip:9999001234@194.244.Proxy__IP></a><o:p></o:p></span></font></p>
<p class="MsoNormal"><font color="navy" face="Arial" size="2"><span
style="font-size: 10pt; font-family: Arial; color: navy;"> </span></font><font
color="navy" face="Arial" size="2"><span
style="font-size: 10pt; font-family: Arial; color: navy;" lang="EN-GB">SIP
to address: <a class="moz-txt-link-abbreviated"
href="mailto:sip:9999001234@194.244.Proxy__IP">sip:9999001234@194.244.Proxy__IP</a><o:p></o:p></span></font></p>
<p class="MsoNormal"><font color="navy" face="Arial" size="2"><span
style="font-size: 10pt; font-family: Arial; color: navy;" lang="EN-GB">
Contact: <a class="moz-txt-link-rfc2396E"
href="mailto:sip:000003@213.156.ua_pub_IP:1176"><sip:000003@213.156.ua_pub_IP:1176></a><o:p></o:p></span></font></p>
<p class="MsoNormal"><font color="navy" face="Arial" size="2"><span
style="font-size: 10pt; font-family: Arial; color: navy;" lang="EN-GB">
Contact
Binding: <a class="moz-txt-link-rfc2396E"
href="mailto:sip:000003@213.156.ua_pub_IP:1176"><sip:000003@213.156.ua_pub_IP:1176></a><o:p></o:p></span></font></p>
<p class="MsoNormal"><font color="navy" face="Arial" size="2"><span
style="font-size: 10pt; font-family: Arial; color: navy;" lang="EN-GB">
</span></font><font color="navy" face="Arial" size="2"><span
style="font-size: 10pt; font-family: Arial; color: navy;">URI: <a
class="moz-txt-link-rfc2396E"
href="mailto:sip:000003@213.156.ua_pub_IP:1176"><sip:000003@213.156.ua_pub_IP:1176></a><o:p></o:p></span></font></p>
<p class="MsoNormal"><font color="navy" face="Arial" size="2"><span
style="font-size: 10pt; font-family: Arial; color: navy;">
</span></font><font color="navy" face="Arial" size="2"><span
style="font-size: 10pt; font-family: Arial; color: navy;" lang="EN-GB">SIP
contact address: <a class="moz-txt-link-abbreviated"
href="mailto:sip:000003@213.156.ua_pub_IP:1176">sip:000003@213.156.ua_pub_IP:1176</a><o:p></o:p></span></font></p>
<p class="MsoNormal"><font color="navy" face="Arial" size="2"><span
style="font-size: 10pt; font-family: Arial; color: navy;" lang="EN-GB">
Supported:
replaces<o:p></o:p></span></font></p>
<p class="MsoNormal"><font color="navy" face="Arial" size="2"><span
style="font-size: 10pt; font-family: Arial; color: navy;" lang="EN-GB">
Call-ID: <a class="moz-txt-link-abbreviated"
href="mailto:953e8996cfcc4ccc@1.255.ua_priv__IP">953e8996cfcc4ccc@1.255.ua_priv__IP</a><o:p></o:p></span></font></p>
<p class="MsoNormal"><font color="navy" face="Arial" size="2"><span
style="font-size: 10pt; font-family: Arial; color: navy;" lang="EN-GB">
CSeq: 60577
INVITE<o:p></o:p></span></font></p>
<p class="MsoNormal"><font color="navy" face="Arial" size="2"><span
style="font-size: 10pt; font-family: Arial; color: navy;" lang="EN-GB">
Sequence
Number: 60577<o:p></o:p></span></font></p>
<p class="MsoNormal"><font color="navy" face="Arial" size="2"><span
style="font-size: 10pt; font-family: Arial; color: navy;" lang="EN-GB">
Method:
INVITE<o:p></o:p></span></font></p>
<p class="MsoNormal"><font color="navy" face="Arial" size="2"><span
style="font-size: 10pt; font-family: Arial; color: navy;" lang="EN-GB">
User-Agent:
Grandstream HT386 1.0.3.64 FXS0<o:p></o:p></span></font></p>
<p class="MsoNormal"><font color="navy" face="Arial" size="2"><span
style="font-size: 10pt; font-family: Arial; color: navy;" lang="EN-GB">
Max-Forwards: 16<o:p></o:p></span></font></p>
<p class="MsoNormal"><font color="navy" face="Arial" size="2"><span
style="font-size: 10pt; font-family: Arial; color: navy;" lang="EN-GB">
Allow:
INVITE,ACK,CANCEL,BYE,NOTIFY,REFER,OPTIONS,INFO,SUBSCRIBE<o:p></o:p></span></font></p>
<p class="MsoNormal"><font color="navy" face="Arial" size="2"><span
style="font-size: 10pt; font-family: Arial; color: navy;" lang="EN-GB">
Content-Type:
application/sdp<o:p></o:p></span></font></p>
<p class="MsoNormal"><font color="navy" face="Arial" size="2"><span
style="font-size: 10pt; font-family: Arial; color: navy;" lang="EN-GB">
Content-Length:
327<o:p></o:p></span></font></p>
<p class="MsoNormal"><font color="navy" face="Arial" size="2"><span
style="font-size: 10pt; font-family: Arial; color: navy;" lang="EN-GB">
Message body<o:p></o:p></span></font></p>
<p class="MsoNormal"><font color="navy" face="Arial" size="2"><span
style="font-size: 10pt; font-family: Arial; color: navy;" lang="EN-GB"><o:p> </o:p></span></font></p>
<p class="MsoNormal"><font color="navy" face="Arial" size="2"><span
style="font-size: 10pt; font-family: Arial; color: navy;" lang="EN-GB">As
you can see, contact
informations are correctly fixed with the pubblic UA address, but when
the
callee hungs up, the BYE is relayed to the private IP address: am I
missing
something ?<o:p></o:p></span></font></p>
<p class="MsoNormal"><font color="navy" face="Arial" size="2"><span
style="font-size: 10pt; font-family: Arial; color: navy;" lang="EN-GB">In
this invite I see UA private
address only in VIA: does BYE look to this parameter ?<o:p></o:p></span></font></p>
<p class="MsoNormal"><font color="navy" face="Arial" size="2"><span
style="font-size: 10pt; font-family: Arial; color: navy;" lang="EN-GB">Later
caller hangs up
too, and the OK is relayed to the correct IP/port.<o:p></o:p></span></font></p>
<p class="MsoNormal"><font color="navy" face="Arial" size="2"><span
style="font-size: 10pt; font-family: Arial; color: navy;" lang="EN-GB"><o:p> </o:p></span></font></p>
<p class="MsoNormal"><font color="navy" face="Arial" size="2"><span
style="font-size: 10pt; font-family: Arial; color: navy;" lang="EN-GB">Any
help would be high
appreciate, thanks in advance.<o:p></o:p></span></font></p>
<p class="MsoNormal"><font color="navy" face="Arial" size="2"><span
style="font-size: 10pt; font-family: Arial; color: navy;" lang="EN-GB"><o:p> </o:p></span></font></p>
<p class="MsoNormal"><font color="navy" face="Arial" size="2"><span
style="font-size: 10pt; font-family: Arial; color: navy;" lang="EN-GB">Fabio<o:p></o:p></span></font></p>
<p class="MsoNormal"><font color="navy" face="Arial" size="2"><span
style="font-size: 10pt; font-family: Arial; color: navy;" lang="EN-GB"><o:p> </o:p></span></font></p>
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