<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
</head>
<body>
<p>Somehow I thought that the keepalive is not working and you look
for fixing it. Now I read the full thread and actually the routing
of requests within dialog doesn't work.</p>
<p>Can you send a pcap with such a call taken on Kamailio system?
ACK and BYE should be routed based on Contact of INVITE/200ok and
record-route headers, no longer related to REGISTER (only initial
INVITE should rely on registration data).</p>
<p>Cheers,<br>
Daniel<br>
</p>
<div class="moz-cite-prefix">On 02.04.20 22:11, Daniel W. Graham
wrote:<br>
</div>
<blockquote type="cite"
cite="mid:B86C736D-6487-46CE-9E55-8CB47F67B60E@exchange.intra.cmsinter.net">
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<meta name="Generator" content="Microsoft Word 15 (filtered
medium)">
<style><!--
/* Font Definitions */
@font-face
{font-family:"Cambria Math";
panose-1:2 4 5 3 5 4 6 3 2 4;}
@font-face
{font-family:Calibri;
panose-1:2 15 5 2 2 2 4 3 2 4;}
@font-face
{font-family:Consolas;
panose-1:2 11 6 9 2 2 4 3 2 4;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0in;
margin-bottom:.0001pt;
font-size:11.0pt;
font-family:"Calibri",sans-serif;}
a:link, span.MsoHyperlink
{mso-style-priority:99;
color:blue;
text-decoration:underline;}
pre
{mso-style-priority:99;
mso-style-link:"HTML Preformatted Char";
margin:0in;
margin-bottom:.0001pt;
font-size:10.0pt;
font-family:"Courier New";}
span.HTMLPreformattedChar
{mso-style-name:"HTML Preformatted Char";
mso-style-priority:99;
mso-style-link:"HTML Preformatted";
font-family:Consolas;}
span.EmailStyle22
{mso-style-type:personal-reply;
font-family:"Calibri",sans-serif;
color:windowtext;}
.MsoChpDefault
{mso-style-type:export-only;
font-size:10.0pt;}
@page WordSection1
{size:8.5in 11.0in;
margin:1.0in 1.0in 1.0in 1.0in;}
div.WordSection1
{page:WordSection1;}
--></style>
<div class="WordSection1">
<p class="MsoNormal">Same behavior with add_contact_alias()<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<div>
<p class="MsoNormal">-dan<o:p></o:p></p>
</div>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<div style="border:none;border-top:solid #B5C4DF
1.0pt;padding:3.0pt 0in 0in 0in">
<p class="MsoNormal"><b><span
style="font-size:12.0pt;color:black">From: </span></b><span
style="font-size:12.0pt;color:black"><a class="moz-txt-link-rfc2396E" href="mailto:miconda@gmail.com">"miconda@gmail.com"</a>
<a class="moz-txt-link-rfc2396E" href="mailto:miconda@gmail.com"><miconda@gmail.com></a><br>
<b>Reply-To: </b><a class="moz-txt-link-rfc2396E" href="mailto:miconda@gmail.com">"miconda@gmail.com"</a>
<a class="moz-txt-link-rfc2396E" href="mailto:miconda@gmail.com"><miconda@gmail.com></a><br>
<b>Date: </b>Thursday, April 2, 2020 at 2:59 PM<br>
<b>To: </b>"Kamailio (SER) - Users Mailing List"
<a class="moz-txt-link-rfc2396E" href="mailto:sr-users@lists.kamailio.org"><sr-users@lists.kamailio.org></a>, Daniel Graham
<a class="moz-txt-link-rfc2396E" href="mailto:dan@cmsinter.net"><dan@cmsinter.net></a><br>
<b>Subject: </b>Re: [SR-Users] nathelper without usrloc<o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><o:p> </o:p></p>
</div>
<p>Hello,<o:p></o:p></p>
<p>can you try with add_contact_alias() instead of
set_contact_alias()? The second one updates the contact URI in
a way that is visible for the couple of local modules
immediately, typically needed when having dialog/presence
module in that instance (still no changes to the header
itself, it uses some internal mechanism to signal contact
value should be taken from a special field). The first one
uses the lumps system that makes the changes over the contact
URI not visible immediately (unless msg_apply_changes() is
used).<o:p></o:p></p>
<p>Maybe nat_keepalive() needs the original contact URI, not the
one updated by set_contact_alias().<o:p></o:p></p>
<p>Cheers,<br>
Daniel<o:p></o:p></p>
<div>
<p class="MsoNormal">On 02.04.20 18:45, Daniel W. Graham
wrote:<o:p></o:p></p>
</div>
<blockquote style="margin-top:5.0pt;margin-bottom:5.0pt">
<p class="MsoNormal">I was able to fix all issues, but have
one partially lingering.<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal">For register only, if I apply:
set_contact_alias() with nat_keepalive(), keepalives are not
sent. Removing set_contact_alias() fixes this.
<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal">I *shouldn’t need this if the pbx was
saving received and rport params as a result of
add_path_received().<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal">Can anyone explain why these two
functions conflict?<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal">Test scenario -<o:p></o:p></p>
<p class="MsoNormal"># Doesn’t result in register keepalive –<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal">route[NATDETECT] {<o:p></o:p></p>
<p class="MsoNormal"> force_rport();<br>
set_contact_alias(); # removal of this enables
keepalive<br>
nat_keepalive();<br>
return;<br>
}<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal">I’ve tested this with and without calls
to handle_ruri_alias() elsewhere in cfg script with same
result.<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal">-dan<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<div style="border:none;border-top:solid #B5C4DF
1.0pt;padding:3.0pt 0in 0in 0in">
<p class="MsoNormal"><b><span
style="font-size:12.0pt;color:black">From: </span></b><span
style="font-size:12.0pt;color:black">sr-users
<a href="mailto:sr-users-bounces@lists.kamailio.org"
moz-do-not-send="true"><sr-users-bounces@lists.kamailio.org></a>
on behalf of Sergiu Pojoga
<a href="mailto:pojogas@gmail.com"
moz-do-not-send="true"><pojogas@gmail.com></a><br>
<b>Reply-To: </b>"Kamailio (SER) - Users Mailing List"
<a href="mailto:sr-users@lists.kamailio.org"
moz-do-not-send="true">
<sr-users@lists.kamailio.org></a><br>
<b>Date: </b>Wednesday, April 1, 2020 at 8:58 AM<br>
<b>To: </b>"Kamailio (SER) - Users Mailing List" <a
href="mailto:sr-users@lists.kamailio.org"
moz-do-not-send="true">
<sr-users@lists.kamailio.org></a><br>
<b>Subject: </b>Re: [SR-Users] nathelper without usrloc</span><o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"> <o:p></o:p></p>
</div>
<div>
<p class="MsoNormal">Nothing else comes to mind based on
info provided. May be you can send some sip traffic
captures and elaborate?
<o:p></o:p></p>
<div>
<p class="MsoNormal"> <o:p></o:p></p>
</div>
<div>
<p class="MsoNormal">Regards,<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal">--Sergiu <o:p></o:p></p>
</div>
</div>
<p class="MsoNormal"> <o:p></o:p></p>
<div>
<div>
<p class="MsoNormal">On Tue, Mar 31, 2020 at 10:29 PM
Daniel W. Graham <<a href="mailto:dan@cmsinter.net"
moz-do-not-send="true">dan@cmsinter.net</a>> wrote:<o:p></o:p></p>
</div>
<blockquote style="border:none;border-left:solid #CCCCCC
1.0pt;padding:0in 0in 0in
6.0pt;margin-left:4.8pt;margin-top:5.0pt;margin-right:0in;margin-bottom:5.0pt">
<div>
<p class="MsoNormal">Thanks, yeah I had already changed
that, but registration works with either. I’m not
asking for a solution, just looking for suggestions on
anything that needs attention, so I appreciate your
pointers.
<o:p></o:p></p>
<div>
<p class="MsoNormal"> <o:p></o:p></p>
</div>
<div>
<p class="MsoNormal" style="margin-bottom:12.0pt">-dan<o:p></o:p></p>
<div>
<div>
<p class="MsoNormal">On Mar 31, 2020, at 8:55 PM,
Sergiu Pojoga <<a
href="mailto:pojogas@gmail.com"
target="_blank" moz-do-not-send="true">pojogas@gmail.com</a>>
wrote:<o:p></o:p></p>
</div>
</div>
<div>
<blockquote
style="margin-top:5.0pt;margin-bottom:5.0pt">
<p class="MsoNormal"> <o:p></o:p></p>
</blockquote>
</div>
<blockquote
style="margin-top:5.0pt;margin-bottom:5.0pt">
<div>
<div>
<p class="MsoNormal">Oh and almost forgot - try <b>add_path_received()</b>
instead of add_path()<o:p></o:p></p>
<div>
<p class="MsoNormal"> <o:p></o:p></p>
</div>
<div>
<p class="MsoNormal">Good luck!<o:p></o:p></p>
</div>
</div>
<p class="MsoNormal"> <o:p></o:p></p>
<div>
<div>
<p class="MsoNormal">On Tue, Mar 31, 2020 at
8:48 PM Sergiu Pojoga <<a
href="mailto:pojogas@gmail.com"
target="_blank" moz-do-not-send="true">pojogas@gmail.com</a>>
wrote:<o:p></o:p></p>
</div>
<blockquote style="border:none;border-left:solid
#CCCCCC 1.0pt;padding:0in 0in 0in
6.0pt;margin-left:4.8pt;margin-top:5.0pt;margin-right:0in;margin-bottom:5.0pt">
<div>
<p class="MsoNormal">A lot of things may not
be 'right' here, unfortunately your
question is too broad to answer and too
little info, the topology is indeed
non-default and I doubt someone will
present you with a final solution (there's
business support, if you're looking for
that). <o:p></o:p></p>
<div>
<p class="MsoNormal"> <o:p></o:p></p>
</div>
<div>
<p class="MsoNormal">Otherwise, if I were
to just throw a guess: <o:p></o:p></p>
</div>
<div>
<p class="MsoNormal">-
try fix_nated_register() (instead of
set_contact_alias) just for Register
method on the way to the registrar<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal">- in the Registrar,
make sure the Contact's Path address is
correct<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"> <o:p></o:p></p>
</div>
<div>
<p class="MsoNormal">Cheers,<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal">--Sergiu<o:p></o:p></p>
</div>
</div>
<p class="MsoNormal"> <o:p></o:p></p>
<div>
<div>
<p class="MsoNormal">On Tue, Mar 31, 2020
at 7:34 PM Daniel W. Graham <<a
href="mailto:dan@cmsinter.net"
target="_blank" moz-do-not-send="true">dan@cmsinter.net</a>>
wrote:<o:p></o:p></p>
</div>
<blockquote
style="border:none;border-left:solid
#CCCCCC 1.0pt;padding:0in 0in 0in
6.0pt;margin-left:4.8pt;margin-top:5.0pt;margin-right:0in;margin-bottom:5.0pt">
<p class="MsoNormal">It did help, I read
that a couple times already but
something is still not right, and its
only because of the decoupling of the
registrar. I need to do more debugging
and see if Im loosing the flag value.
Hoping something sticks out that someone
sees and can point me in the right
direction. <br>
<br>
-dan<br>
<br>
On Mar 31, 2020, at 7:15 PM, Alex
Balashov <<a
href="mailto:abalashov@evaristesys.com"
target="_blank" moz-do-not-send="true">abalashov@evaristesys.com</a>>
wrote:<br>
> <br>
> Daniel,<br>
> <br>
> Might this article be of aid?<br>
> <br>
> <a
href="http://www.evaristesys.com/blog/server-side-nat-traversal-with-kamailio-the-definitive-guide/"
target="_blank" moz-do-not-send="true">
http://www.evaristesys.com/blog/server-side-nat-traversal-with-kamailio-the-definitive-guide/</a><br>
> <br>
> -- Alex<br>
> <br>
>> On Tue, Mar 31, 2020 at
11:12:23PM +0000, Daniel W. Graham
wrote:<br>
>> <br>
>> It does but doesn't work as
well as kamailio, and since the proxy is
the entry point.<br>
>> <br>
>> The biggest issue here isnt the
keepalive, as I did have that working.
The main issue is the routing of
messages, utilizing set_contact_alias
and handle_ruri_alias, as Ive been
unable to get ack and bye messages to
make it past the proxy. I’m assuming
these functions are not being used at
the right locations or I need to rely on
another mechanism to accomplish it. I
also question my use of the PBX flag and
the natmanage logic.<br>
>> <br>
>> -dan<br>
>> <br>
>> On Mar 31, 2020, at 7:01 PM,
Sergiu Pojoga <<a
href="mailto:pojogas@gmail.com"
target="_blank" moz-do-not-send="true">pojogas@gmail.com</a>>
wrote:<br>
>> <br>
>> <br>
>> Hi Daniel,<br>
>> <br>
>> From what you are describing,
my understanding is that the Registrar
is the PBX, kamailio is acting as an
edge proxy. If so, doesn't the
PBX/registrar have NAT
traversal/keepalive mechanisms of its
own?<br>
>> <br>
>> Regards,<br>
>> --Sergiu<br>
>> <br>
>> On Tue, Mar 31, 2020 at 1:55 PM
Daniel W. Graham <<a
href="mailto:dan@cmsinter.net"
target="_blank" moz-do-not-send="true">dan@cmsinter.net</a><mailto:<a
href="mailto:dan@cmsinter.net"
target="_blank" moz-do-not-send="true">dan@cmsinter.net</a>>>
wrote:<br>
>> I’ve been missing with this for
a while and seem to be missing
something. Any suggestions on what is
missing here?<br>
>> <br>
>> Trying to use
set_contact_alias() and
handle_ruri_alias() from nathelper
module and nat_keepalive from
nat_traversal module, without registrar.<br>
>> <br>
>> I had register keepalive
working, that has since broke. When
register keepalive was working, I was
able to place call in either direction
but ACK and BYE was not being routed
past kamailio.<br>
>> <br>
>> Registrations are forwarded to
the PBX using add_path() and is working.<br>
>> <br>
>> Also not included below is the
routing to the PBX, that is just setting
$du and t_relay, and is also working.<br>
>> <br>
>> Topology is: UA1 -> NAT
-> kamailio -> PBX -> UA2<br>
>> <br>
>> Using default config file as
the example, modified with above
changes. I also removed RTP config as
that is a non-issue.<br>
>> <br>
>> request_route {<br>
>> ……<br>
>> # FLAG MESSAGES FROM PBX<br>
>> setflag(FLT_PBX);<br>
>> route(NATDETECT);<br>
>> ……<br>
>> <br>
>> route[NATDETECT] {<br>
>> if
(nat_uac_test("19")) {<br>
>> force_rport();<br>
>>
set_contact_alias();<br>
>>
nat_keepalive();<br>
>> }<br>
>> return;<br>
>> }<br>
>> <br>
>> route[WITHINDLG] {<br>
>> if (!has_totag())
return;<br>
>> if
(loose_route()) {<br>
>>
route(DLGURI);<br>
>> } else
if ( is_method("ACK") ) {<br>
>>
route(NATMANAGE);<br>
>> } else
if ( is_method("NOTIFY") ) {<br>
>>
record_route();<br>
>> }<br>
>> route(RELAY);<br>
>> exit;<br>
>> }<br>
>> <br>
>> if
(is_method("SUBSCRIBE") && uri
== myself) {<br>
>>
route(PRESENCE);<br>
>> exit;<br>
>> }<br>
>> if (
is_method("ACK") ) {<br>
>> if (
t_check_trans() ) {<br>
>>
route(RELAY);<br>
>>
exit;<br>
>> } else {<br>
>>
exit;<br>
>> }<br>
>> }<br>
>>
sl_send_reply("404","Not here");<br>
>> exit;<br>
>> }<br>
>> <br>
>> route[NATMANAGE] {<br>
>> if(isflagset(FLT_PBX)) {<br>
>> handle_ruri_alias();<br>
>> }<br>
>> if(!isflagset(FLT_PBX)) {<br>
>> set_contact_alias();<br>
>> } return;<br>
>> }<br>
>> <br>
>> route[DLGURI] {<br>
>> if(!isdsturiset()) {<br>
>>
handle_ruri_alias();<br>
>> }<br>
>> return;<br>
>> }<br>
>> <br>
>> branch_route[MANAGE_BRANCH] {<br>
>> route(NATMANAGE);<br>
>> }<br>
>> <br>
>> onreply_route[MANAGE_REPLY] {<br>
>>
if(status=~"[12][0-9][0-9]") {<br>
>>
route(NATMANAGE);<br>
>> }<br>
>> }<br>
>> failure_route[MANAGE_FAILURE] {<br>
>> route(NATMANAGE);<br>
>> <br>
>> if (t_is_canceled())
exit;<br>
>> <br>
>> <br>
>> -dan<br>
>> <br>
>>
_______________________________________________<br>
>> Kamailio (SER) - Users Mailing
List<br>
>> <a
href="mailto:sr-users@lists.kamailio.org"
target="_blank" moz-do-not-send="true">sr-users@lists.kamailio.org</a><mailto:<a
href="mailto:sr-users@lists.kamailio.org" target="_blank"
moz-do-not-send="true">sr-users@lists.kamailio.org</a>><br>
>> <a
href="https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users"
target="_blank" moz-do-not-send="true">
https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users</a><br>
>>
_______________________________________________<br>
>> Kamailio (SER) - Users Mailing
List<br>
>> <a
href="mailto:sr-users@lists.kamailio.org"
target="_blank" moz-do-not-send="true">sr-users@lists.kamailio.org</a><br>
>> <a
href="https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users"
target="_blank" moz-do-not-send="true">
https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users</a><br>
> <br>
>>
_______________________________________________<br>
>> Kamailio (SER) - Users Mailing
List<br>
>> <a
href="mailto:sr-users@lists.kamailio.org"
target="_blank" moz-do-not-send="true">sr-users@lists.kamailio.org</a><br>
>> <a
href="https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users"
target="_blank" moz-do-not-send="true">
https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users</a><br>
> <br>
> <br>
> -- <br>
> Alex Balashov | Principal |
Evariste Systems LLC<br>
> <br>
> Tel: +1-706-510-6800 /
+1-800-250-5920 (toll-free)<br>
> Web: <a
href="http://www.evaristesys.com/"
target="_blank" moz-do-not-send="true">http://www.evaristesys.com/</a>,
<a href="http://www.csrpswitch.com/"
target="_blank" moz-do-not-send="true">http://www.csrpswitch.com/</a><br>
> <br>
>
_______________________________________________<br>
> Kamailio (SER) - Users Mailing List<br>
> <a
href="mailto:sr-users@lists.kamailio.org"
target="_blank" moz-do-not-send="true">sr-users@lists.kamailio.org</a><br>
> <a
href="https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users"
target="_blank" moz-do-not-send="true">
https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users</a><br>
_______________________________________________<br>
Kamailio (SER) - Users Mailing List<br>
<a
href="mailto:sr-users@lists.kamailio.org"
target="_blank" moz-do-not-send="true">sr-users@lists.kamailio.org</a><br>
<a
href="https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users"
target="_blank" moz-do-not-send="true">https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users</a><o:p></o:p></p>
</blockquote>
</div>
</blockquote>
</div>
<p class="MsoNormal">_______________________________________________<br>
Kamailio (SER) - Users Mailing List<br>
<a href="mailto:sr-users@lists.kamailio.org"
target="_blank" moz-do-not-send="true">sr-users@lists.kamailio.org</a><br>
<a
href="https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users"
target="_blank" moz-do-not-send="true">https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users</a><o:p></o:p></p>
</div>
</blockquote>
</div>
</div>
<p class="MsoNormal">_______________________________________________<br>
Kamailio (SER) - Users Mailing List<br>
<a href="mailto:sr-users@lists.kamailio.org"
target="_blank" moz-do-not-send="true">sr-users@lists.kamailio.org</a><br>
<a
href="https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users"
target="_blank" moz-do-not-send="true">https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users</a><o:p></o:p></p>
</blockquote>
</div>
<p class="MsoNormal"><br>
<br>
<o:p></o:p></p>
<pre>_______________________________________________<o:p></o:p></pre>
<pre>Kamailio (SER) - Users Mailing List<o:p></o:p></pre>
<pre><a href="mailto:sr-users@lists.kamailio.org" moz-do-not-send="true">sr-users@lists.kamailio.org</a><o:p></o:p></pre>
<pre><a href="https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users" moz-do-not-send="true">https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users</a><o:p></o:p></pre>
</blockquote>
<pre>-- <o:p></o:p></pre>
<pre>Daniel-Constantin Mierla -- <a href="http://www.asipto.com" moz-do-not-send="true">www.asipto.com</a><o:p></o:p></pre>
<pre><a href="http://www.twitter.com/miconda" moz-do-not-send="true">www.twitter.com/miconda</a> -- <a href="http://www.linkedin.com/in/miconda" moz-do-not-send="true">www.linkedin.com/in/miconda</a><o:p></o:p></pre>
</div>
</blockquote>
<pre class="moz-signature" cols="72">--
Daniel-Constantin Mierla -- <a class="moz-txt-link-abbreviated" href="http://www.asipto.com">www.asipto.com</a>
<a class="moz-txt-link-abbreviated" href="http://www.twitter.com/miconda">www.twitter.com/miconda</a> -- <a class="moz-txt-link-abbreviated" href="http://www.linkedin.com/in/miconda">www.linkedin.com/in/miconda</a></pre>
</body>
</html>