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<p class=MsoNormal><span lang=EN-US>Hello everybody<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US>I have such problem with kamailio and
client which behind NAT<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US>This is REGISTER message which came from
client. This message came from public IP (for example, 1.1.1.1) and source port
44197. (This information I got from sip_trace)<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US>REGISTER sip:sip.ptl.ru:5060;transport=UDP
SIP/2.0<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>From: <sip:xxxxxxx@sip.ptl.ru:5060>;tag=a82eda3-13c4-47798948-1a1296-5259a46<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>To: <sip:xxxxxxx@sip.ptl.ru:5060><o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>Call-ID:
a82eda3-13c4-47798948-1a1296-9641c88@sip.ptl.ru<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>CSeq: 446229198 REGISTER<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>Via: SIP/2.0/UDP
10.130.237.163:5060;branch=z9hG4bK-47799e27-6b9841-84448db<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>Max-Forwards: 70<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>Supported: timer<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>Contact: <sip:xxxxxxx@10.130.237.163:5060;transport=UDP><o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>Expires: 60<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>Content-Length: 0<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US>This is Unauthorized message was sent by
kamailio to 1.1.1.1 and… destination port not 44197 (as I expected) but
5060!!!<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US>SIP/2.0 401 Unauthorized<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>From: <sip:xxxxxxx@sip.ptl.ru:5060>;tag=a82eda3-13c4-47798948-1a1296-5259a46<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>To: <sip:xxxxxxx@sip.ptl.ru:5060>;tag=fdc454a3cdd8f9e5718382b74f33aeed.3b81<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>Call-ID:
a82eda3-13c4-47798948-1a1296-9641c88@sip.ptl.ru<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>CSeq: 446229198 REGISTER<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>Via: SIP/2.0/UDP 10.130.237.163:5060;branch=z9hG4bK-47799e27-6b9841-84448db;received=1.1.1.1<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>WWW-Authenticate: Digest realm="domain
name", nonce="4af0129b000000047c1020258f9f0efc4de1b76663dd2ab4"<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>Server: Kamailio (1.5.0-notls (i386/linux))<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>Content-Length: 0<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US>And as you understand 401 reply, which was
sent to 1.1.1.1:5060 can’t reach client’s equipment.<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US>A piece of kamailio.cfg relating to
REGISTER processing:<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>route(0) {<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>….<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>if (!is_method("INVITE"))
route(8);<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>….<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>šš if (is_method("REGISTER")) {<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>ššš route(11);<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>ššš exit;<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>š}<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>…..<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>}<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>route(8) {<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>ššššššššššš if
(nat_uac_test("5")) {<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>ššššššššššššš if
(method=="REGISTER") {<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>ššššššššššššššš fix_nated_register();<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>ššššššššš } else {<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>šš šššššššššššššfix_nated_contact();<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>šššššššš }<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>ššššššš setflag(5);<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>ššššššš }<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>ššššššš return;<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>}<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>route(11) {<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>ššššššš if (!www_authorize("",
"subscriber")) {<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>ššššššššššš www_challenge("",
"0");<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>ššššššššššššššš exit;<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>šššššššš }<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>ššššššššššš if ($au!=$tU)š {<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>šššššššššš sl_send_reply("403","Forbidden
auth ID");<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>ššššššššššš exit;<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>ššššššššššš }<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>ššššššš if (isflagset(5)) setbflag(6);<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>ššššššš if (!save("location")) {<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>ššššššššššš sl_reply_error();<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>ššššššššššš exit;<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>šššššššš }<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>}<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US>Hearty thanks for any help.<o:p></o:p></span></p>
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