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<p>Hi Daniel,</p>
I have read the warning, so I changed kamailio.cfg.customtt.tt2 and
did <b>not</b> make a tags_header.customtt.tt2. This time with the
$ct variable.<br>
As [%logreq -%] is expanded to R=$ru ID=$ci UA='$ua' I added the <u>new</u>
CT=$ct with escaped quotes and ; as terminator as specified:<br>
<br>
<tt>[% argv.service='proxy'; PROCESS
'/etc/ngcp-config/templates/etc/kamailio/tags_header.tt2' -%]</tt><tt><br>
</tt><tt>[% # Add here your customizations to parameters evaluated
in file kamailio/tags_header.tt2 -%]</tt><tt><br>
</tt><tt>logreq="R=$ru ID=$ci <b>CT=$ct</b> UA=\'$ua\'";</tt><tt><br>
</tt><tt><br>
</tt><tt>#!KAMAILIO</tt><br>
<br>
So I think exactly as specified, but no result, as the first log in
the generated auth.cfg still is <br>
<tt>xlog("L_NOTICE", "Extracted caller info from PAI,
subscriber=$var(realm_user)@$var(realm_domain) - </tt><tt><b>R=$ru
ID=$ci UA='$ua'</b></tt><tt>\n");</tt><tt><br>
</tt><br>
I can also change constants.yml, or will this be overwritten by an
upgrade?<br>
<br>
Regards,<br>
<br>
Henk<br>
<br>
<div class="moz-cite-prefix">On 4-2-2019 13:07, Daniel Grotti wrote:<br>
</div>
<blockquote type="cite"
cite="mid:f52844a6-e410-d4d3-4477-2177113946a3@sipwise.com">
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<tt>Hi,<br>
have you read the ATTENTION warning at the beginning of
tags_header.tt2 ?<br>
You can find there how to change it.<br>
<br>
Also, please DO NOT change the IP= , but rather ADD a new
parameter like CT=$ct<br>
<br>
</tt>
<pre class="moz-signature" cols="72">--
Daniel Grotti
Head of Customer Support Sipwise GmbH
e: <a class="moz-txt-link-abbreviated" href="mailto:dgrotti@sipwise.com" moz-do-not-send="true">dgrotti@sipwise.com</a> Europaring F15
t: +43(0)130120332 A-2345 Brunn Am Gebirge
w: <a class="moz-txt-link-abbreviated" href="http://www.sipwise.com" moz-do-not-send="true">www.sipwise.com</a> FN: 305595f FG: LG Wiener Neustadt
</pre>
<div class="moz-cite-prefix">On 2/4/19 1:01 PM, Henk wrote:<br>
</div>
<blockquote type="cite"
cite="mid:2d8133e1-4022-5f98-01af-747dca0f79e0@voipdigit.nl">
<meta http-equiv="Content-Type" content="text/html;
charset=utf-8">
<p>Hi Daniel,</p>
<p>It looks I have to overwrite logreq from tag_header.tt2, but
if I add the following line in kamailio.cfg.tt2 and build the
configuration it does not have any effect:<br>
</p>
<p>logreq="R=$ru ID=$ci IP=$ct UA=\'$ua\'";<br>
</p>
Any advise on what to change exactly?<br>
<br>
Regards,<br>
<br>
Henk<br>
<br>
<div class="moz-cite-prefix">On 4-2-2019 11:43, Daniel Grotti
wrote:<br>
</div>
<blockquote type="cite"
cite="mid:4e7755ec-9fa9-6f09-45f0-6d2bad360780@sipwise.com">
<meta http-equiv="Content-Type" content="text/html;
charset=utf-8">
<tt>Hi Henk,<br>
you can either block the call by User Agent or you can print
out the Contact header in the log, if you want.<br>
You can use the "$ct" variable in the kamailio.cfg<br>
<br>
Cheers,<br>
<br>
<br>
</tt>
<pre class="moz-signature" cols="72">--
Daniel Grotti
Head of Customer Support Sipwise GmbH
e: <a class="moz-txt-link-abbreviated" href="mailto:dgrotti@sipwise.com" moz-do-not-send="true">dgrotti@sipwise.com</a> Europaring F15
t: +43(0)130120332 A-2345 Brunn Am Gebirge
w: <a class="moz-txt-link-abbreviated" href="http://www.sipwise.com" moz-do-not-send="true">www.sipwise.com</a> FN: 305595f FG: LG Wiener Neustadt
</pre>
<div class="moz-cite-prefix">On 2/2/19 3:50 PM, Henk wrote:<br>
</div>
<blockquote type="cite"
cite="mid:266d00f2-6fd1-ba01-a51e-a6f782248f3f@voipdigit.nl">
<meta http-equiv="content-type" content="text/html;
charset=utf-8">
<p>Hi all,</p>
<p>I'm using fail2ban and ipset-blocklist to protect my
Sipwise system. But lately scanners are not detected by
fail2ban anymore, as they are using local or random
addresses like this:</p>
<p><tt>INVITE <a class="moz-txt-link-freetext"
href="sip:0001130046423112923@172.31.1.100:5060"
moz-do-not-send="true">sip:0001130046423112923@172.31.1.100:5060</a>
SIP/2.0</tt><tt><br>
</tt><tt>Via: SIP/2.0/TCP
102.165.36.71:10959;branch=z9hG4bK-524287-1---5918c9179145ae4f;rport</tt><tt><br>
</tt><tt>Max-Forwards: 70</tt><tt><br>
</tt><tt>Contact: <a class="moz-txt-link-rfc2396E"
href="sip:1234@102.165.36.71:10959;ob;transport=tcp"
moz-do-not-send="true"><sip:1234@102.165.36.71:10959;ob;transport=tcp></a>;+sip.instance="<urn:uuid:502A48A2-928D-7B59-1365-6A5BD8F30393>"</tt><tt><br>
</tt><tt>To: <a class="moz-txt-link-rfc2396E"
href="sip:0001130046423112923@172.31.1.100:5060"
moz-do-not-send="true"><sip:0001130046423112923@172.31.1.100:5060></a></tt><tt><br>
</tt><tt>From: "1234"<a class="moz-txt-link-rfc2396E"
href="sip:1234@172.31.1.100:5060"
moz-do-not-send="true"><sip:1234@172.31.1.100:5060></a>;tag=a9398072</tt><br>
</p>
<p>So only the contact header contains the real IP address.
The proxy logs this (other request):</p>
<p><tt>Feb 2 00:01:23 spce proxy[15788]: NOTICE:
<script>: New request on proxy - M=INVITE R=<a
class="moz-txt-link-freetext"
href="sip:988891046423112923@172.31.1.100:5060"
moz-do-not-send="true">sip:988891046423112923@172.31.1.100:5060</a>
F=<a class="moz-txt-link-freetext"
href="sip:1234@172.31.1.100:5060"
moz-do-not-send="true">sip:1234@172.31.1.100:5060</a>
T=<a class="moz-txt-link-freetext"
href="sip:988891046423112923@172.31.1.100:5060"
moz-do-not-send="true">sip:988891046423112923@172.31.1.100:5060</a>
IP=102.165.36.71:60384 (127.0.0.1:5060)
ID=qeClERktVcCMa3Srchan0g.. UA='PortSIP VoIP SDK 11.2'
DESTIP=127.0.0.1:5062</tt><tt><br>
</tt><tt>Feb 2 00:01:23 spce proxy[15788]: NOTICE:
<script>: Sending reply S=100 Trying
fs='127.0.0.1:5062' du='127.0.0.1:5060' - R=<a
class="moz-txt-link-freetext"
href="sip:988891046423112923@172.31.1.100:5060"
moz-do-not-send="true">sip:988891046423112923@172.31.1.100:5060</a>
ID=qeClERktVcCMa3Srchan0g.. UA='PortSIP VoIP SDK 11.2'</tt><tt><br>
</tt><tt>Feb 2 00:01:23 spce proxy[15788]: NOTICE:
<script>: Authentication failed, no credentials -
R=<a class="moz-txt-link-freetext"
href="sip:988891046423112923@" moz-do-not-send="true">sip:988891046423112923@</a><b>172.31.1.100</b>:5060
ID=qeClERktVcCMa3Srchan0g.. UA='PortSIP VoIP SDK 11.2'
Auth=<null></tt><br>
</p>
<p>So this cannot be used for fail2ban. Is there a way to
log the real address of the attacker?</p>
<p>Regards,</p>
<p>Henk<br>
</p>
<br>
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