<div style="font-family: arial; font-size: 14px;">Thanks for your inputs Daniel and Igor.</div><div style="font-family: arial; font-size: 14px;"><br></div><div style="font-family: arial; font-size: 14px;">I have confirmed that Kamailio is indeed sending out WebSocket ping as configured. Chrome's network tab do not show the control packets, but it can be viewed using firefox. <br></div><div style="font-family: arial; font-size: 14px;"><br></div><div style="font-family: arial; font-size: 14px;">X.</div><br><div style="font-family: arial; font-size: 14px;"><br></div><div class="protonmail_quote">
------- Original Message -------<br>
On Friday, March 11th, 2022 at 3:25 PM, Daniel-Constantin Mierla <miconda@gmail.com> wrote:<br><br>
<blockquote class="protonmail_quote" type="cite">
<p>Indeed, the sipdump is not saving everything that comes in or
goes out of kamailio, only the traffic that uses the functions for
handling or sending sip traffic. http is mapped over sip
internally, but ws pings are using directly lower api for tcp
send.</p>
<p>Cheers,<br>
Daniel<br>
</p>
<div class="moz-cite-prefix">On 11.03.22 10:34, Igor Olhovskiy
wrote:<br>
</div>
<blockquote type="cite">
<div dir="ltr">
<div>Xuo,</div>
<div><br>
</div>
<div>Can't say for Chrome Web Tools, but they most likely will
filter these packets out as they are not part of "real
traffic". I'd suggest you to do a capture directly on the wire
with Wireshark or so.</div>
<div><br>
</div>
<div>Same for Kamailio, I also don't expect em to be saved there
for the same reason above.<br>
</div>
</div>
<br>
<div class="gmail_quote">
<div class="gmail_attr" dir="ltr">пт, 11 мар. 2022 г. в 09:29,
Xuo Guoto <<a class="moz-txt-link-freetext" href="mailto:xuoguoto@protonmail.com" rel="noreferrer nofollow noopener" target="_blank">xuoguoto@protonmail.com</a>>:<br>
</div>
<blockquote style="margin:0px 0px 0px
0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex" class="gmail_quote">
<div style="font-family:arial;font-size:14px">Hi,</div>
<div style="font-family:arial;font-size:14px"><br>
</div>
<div style="font-family:arial;font-size:14px">Yes, I
understand that the SIP OPTIONS and websocket pings are
different.</div>
<div style="font-family:arial;font-size:14px"><br>
</div>
<div style="font-family:arial;font-size:14px">I check the ping
using two methods. One at the client side using chrome
developer tools. At the server side I use sipdump module to
capture all traffic. <br>
</div>
<div style="font-family:arial;font-size:14px"><br>
</div>
<div style="font-family:arial;font-size:14px"><span>modparam("sipdump",
"enable", 1)</span>
<div><span>modparam("sipdump", "folder",
"/var/log/kamailio/sip/")</span></div>
<span></span></div>
<div style="font-family:arial;font-size:14px"><br>
</div>
<div style="font-family:arial;font-size:14px">With this
enabled, kamailio dumps all the traffic in a file for
analysis. For example:</div>
<div style="font-family:arial;font-size:14px"><br>
</div>
<div style="font-family:arial;font-size:14px"><span>tag: rcv</span>
<div><span>pid: 1553531</span></div>
<div><span>process: 16</span></div>
<div><span>time: 1646982958.357033</span></div>
<div><span>date: Fri Mar 11 12:45:58 2022</span></div>
<div><span>proto: tls ipv4</span></div>
<div><span>srcip: x9.xx.196.11</span></div>
<div><span>srcport: 54640</span></div>
<div><span>dstip: 1x8.xx.59.172</span></div>
<div><span>dstport: 443</span></div>
<div><span>~~~~~~~~~~~~~~~~~~~~</span></div>
<div><span>GET /ws HTTP/1.1</span></div>
<div><span>Host: <a target="_blank" href="http://myhost-q01.mydomain.net" rel="noreferrer nofollow noopener">myhost-q01.mydomain.net</a></span></div>
<div><span>Connection: Upgrade</span></div>
<div><span>Pragma: no-cache</span></div>
<div><span>Cache-Control: no-cache</span></div>
<div><span>User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64;
x64) AppleWebKit/537.36 (KHTML, like Gecko)
Chrome/99.0.4844.51 Safari/537.3</span></div>
<div><span>6 Edg/99.0.1150.36</span></div>
<div><span>Upgrade: websocket</span></div>
<div><span>Origin: <a class="moz-txt-link-freetext" target="_blank" href="https://myhost-adm.mydomain.net" rel="noreferrer nofollow noopener">https://myhost-adm.mydomain.net</a></span></div>
<div><span>Sec-WebSocket-Version: 13</span></div>
<span></span><snip></div>
<div style="font-family:arial;font-size:14px"><br>
</div>
<div style="font-family:arial;font-size:14px">I expect the
ping websockets to be printed here, but this is not the only
place I am checking for. If pings are being sent, I should
get to see it at chrome websocket also. In my case neither
place shows any trace of websocket pings packets. <br>
</div>
<div style="font-family:arial;font-size:14px"><br>
</div>
<div style="font-family:arial;font-size:14px">X.<br>
</div>
<div style="font-family:arial;font-size:14px"><br>
</div>
<div style="font-family:arial;font-size:14px"><br>
</div>
<div style="font-family:arial;font-size:14px">
<div> </div>
<div> Sent with <a target="_blank" rel="noreferrer nofollow noopener" href="https://protonmail.com/">ProtonMail</a> secure email. </div>
</div>
<div style="font-family:arial;font-size:14px"><br>
</div>
<div> ------- Original Message -------<br>
On Friday, March 11th, 2022 at 2:19 PM, Igor Olhovskiy <<a class="moz-txt-link-freetext" target="_blank" href="mailto:igorolhovskiy@gmail.com" rel="noreferrer nofollow noopener">igorolhovskiy@gmail.com</a>>
wrote:<br>
<br>
<blockquote type="cite">
<div dir="ltr">
<div>Xuo,</div>
<div><br>
</div>
<div>How do you capture this traffic? WebSocket pings is
not an ordinary "SIP-style OPTIONS" pings, It's
packets described in RFC6455 - <a class="moz-txt-link-freetext" target="_blank" rel="noreferrer nofollow noopener" href="https://datatracker.ietf.org/doc/html/rfc6455#section-5.5.2">https://datatracker.ietf.org/doc/html/rfc6455#section-5.5.2</a></div>
</div>
<br>
<div class="gmail_quote">
<div dir="ltr" class="gmail_attr">чт, 10 мар. 2022 г. в
16:57, Xuo Guoto <<a class="moz-txt-link-freetext" target="_blank" rel="noreferrer nofollow noopener" href="mailto:xuoguoto@protonmail.com">xuoguoto@protonmail.com</a>>:<br>
</div>
<blockquote class="gmail_quote" style="margin:0px 0px 0px
0.8ex;border-left:1px solid
rgb(204,204,204);padding-left:1ex">
<div style="font-family:arial;font-size:14px;color:rgb(34,34,34)">Hello
list,</div>
<div style="font-family:arial;font-size:14px;color:rgb(34,34,34)"><br>
</div>
<div style="font-family:arial;font-size:14px;color:rgb(34,34,34)">I
have kamailio <span>5.5.3 (x86_64/linux)</span>
configured as an SBC in front of asterisk to front
end webrtc clients. Browser clients running <span>JsSIP
3.7.0</span> connect to kamailio via webrtc and
kamailio sends the traffic back to asterisk using
SIP. rtpengine is configured to relay the RTP
packets.</div>
<div style="font-family:arial;font-size:14px;color:rgb(34,34,34)"><br>
</div>
<div style="font-family:arial;font-size:14px;color:rgb(34,34,34)">I
need to send websocket pings every 10 seconds to the
browser clients.<br>
</div>
<div style="font-family:arial;font-size:14px;color:rgb(34,34,34)"><br>
</div>
<div style="font-family:arial;font-size:14px;color:rgb(34,34,34)">I
have the following config in kamailio:</div>
<div style="font-family:arial;font-size:14px;color:rgb(34,34,34)"><br>
</div>
<div style="font-family:arial;font-size:14px;color:rgb(34,34,34)"><span></span><span></span><span>modparam("websocket",
"keepalive_mechanism", 1)</span>
<div><span>modparam("websocket",
"keepalive_timeout", 10)</span></div>
<div><span>modparam("websocket",
"keepalive_interval", 2)</span></div>
<div><span>modparam("websocket",
"keepalive_processes", 2)</span></div>
<div><span>modparam("websocket", "verbose_list", 1)</span></div>
<span></span></div>
<br>
<div style="font-family:arial;font-size:14px;color:rgb(34,34,34)">If
my understanding of the documentation is correct, I
do not need to do any additional configuration. <br>
</div>
<div style="font-family:arial;font-size:14px;color:rgb(34,34,34)"><br>
</div>
<div style="font-family:arial;font-size:14px;color:rgb(34,34,34)">But
looking at the websocket traffic, I do not see any
ping packets in websocket. I am also using sipdump
module to capture all packets sent and received by
kamailio and the ping packets are not visible there
either.</div>
<div style="font-family:arial;font-size:14px;color:rgb(34,34,34)"><br>
</div>
<div style="font-family:arial;font-size:14px;color:rgb(34,34,34)">What
could be wrong here? Do I need to do any additional
config? <br>
</div>
<div style="font-family:arial;font-size:14px;color:rgb(34,34,34)"><br>
</div>
<div style="font-family:arial;font-size:14px;color:rgb(34,34,34)">Thanks
for every help!</div>
<div style="font-family:arial;font-size:14px;color:rgb(34,34,34)"><br>
</div>
<div style="font-family:arial;font-size:14px;color:rgb(34,34,34)">X.<br>
</div>
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</blockquote>
</div>
<br clear="all">
<br>
-- <br>
<div dir="ltr">
<div dir="ltr">Best regards,
<div>Igor</div>
</div>
</div>
</blockquote>
<br>
</div>
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</blockquote>
</div>
<br clear="all">
<br>
-- <br>
<div class="gmail_signature" dir="ltr">
<div dir="ltr">Best regards,
<div>Igor</div>
</div>
</div>
<br>
<fieldset class="moz-mime-attachment-header"></fieldset>
<pre class="moz-quote-pre" wrap="">__________________________________________________________
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</pre>
</blockquote>
<pre cols="72" class="moz-signature">--
Daniel-Constantin Mierla -- <a href="http://www.asipto.com" class="moz-txt-link-abbreviated" rel="noreferrer nofollow noopener" target="_blank">www.asipto.com</a>
<a href="http://www.twitter.com/miconda" class="moz-txt-link-abbreviated" rel="noreferrer nofollow noopener" target="_blank">www.twitter.com/miconda</a> -- <a href="http://www.linkedin.com/in/miconda" class="moz-txt-link-abbreviated" rel="noreferrer nofollow noopener" target="_blank">www.linkedin.com/in/miconda</a>
Kamailio Advanced Training - Online
March 28-31, 2022 (Europe Timezone)
* <a href="https://www.asipto.com/sw/kamailio-advanced-training-online/" class="moz-txt-link-freetext" rel="noreferrer nofollow noopener" target="_blank">https://www.asipto.com/sw/kamailio-advanced-training-online/</a></pre>
</blockquote><br>
</div>