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--></style></head><body lang="EN-ZA" link="blue" vlink="purple"><div class="WordSection1"><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Hi,</span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> </span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Read this thread: <a href="http://lists.sipwise.com/pipermail/spce-user/2012-May/001357.html">http://lists.sipwise.com/pipermail/spce-user/2012-May/001357.html</a></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> </span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">You need to send a 200 OK, and then they usually stop. Then ban them.</span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> </span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Regards</span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> </span></p><div style="border:none;border-left:solid blue 1.5pt;padding:0cm 0cm 0cm 4.0pt"><div><div style="border:none;border-top:solid #b5c4df 1.0pt;padding:3.0pt 0cm 0cm 0cm">
<p class="MsoNormal"><b><span lang="EN-US" style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span lang="EN-US" style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> <a href="mailto:spce-user-bounces@lists.sipwise.com">spce-user-bounces@lists.sipwise.com</a> [mailto:<a href="mailto:spce-user-bounces@lists.sipwise.com">spce-user-bounces@lists.sipwise.com</a>] <b>On Behalf Of </b>Theo<br>
<b>Sent:</b> 15 February 2013 10:45 AM<br><b>To:</b> <a href="mailto:spce-user@lists.sipwise.com">spce-user@lists.sipwise.com</a><br><b>Subject:</b> [Spce-user] Under attack :-(</span></p></div></div><p class="MsoNormal">
</p><p class="MsoNormal">Hi</p><div><p class="MsoNormal"> </p></div><div><p class="MsoNormal">ngrep-sip gives me:</p></div><div><p class="MsoNormal"> </p></div><div><div><p class="MsoNormal">#</p></div><div><p class="MsoNormal">
U 2013/02/15 10:39:23.432811 <a href="http://173.242.123.148:5266">173.242.123.148:5266</a> -> <a href="http://196.41.123.113:5060">196.41.123.113:5060</a></p></div><div><p class="MsoNormal">REGISTER <a href="sip:196.41.123.113">sip:196.41.123.113</a> SIP/2.0'</p>
</div><div><p class="MsoNormal">Via: SIP/2.0/UDP 173.242.123.148:5266;branch=z9hG4bK-2478367181;rport'</p></div><div><p class="MsoNormal">Content-Length: 0'</p></div><div><p class="MsoNormal">From: "12unknown" <<a href="mailto:sip%3A12unknown@196.41.123.113">sip:12unknown@196.41.123.113</a>>'</p>
</div><div><p class="MsoNormal">Accept: application/sdp'</p></div><div><p class="MsoNormal">User-Agent: friendly-scanner'</p></div><div><p class="MsoNormal">To: "12unknown" <<a href="mailto:sip%3A12unknown@196.41.123.113">sip:12unknown@196.41.123.113</a>>'</p>
</div><div><p class="MsoNormal">Contact: <a href="mailto:sip%3A123@1.1.1.1">sip:123@1.1.1.1</a>'</p></div><div><p class="MsoNormal">CSeq: 1 REGISTER'</p></div><div><p class="MsoNormal">Call-ID: 4123206054'</p>
</div><div><p class="MsoNormal">Max-Forwards: 70'</p></div><div><p class="MsoNormal">'</p></div></div><div><p class="MsoNormal">with a script changing the Call-ID a a massive rate. So someone is trying to register or doing something sinister. This box is not behind a firewall at this point, just a test box. the IP you see there 173.242.123.148 has indeed been added to the banned IPs which I guess means nothing is actually reaching the proxy? Do we just leave it like this until they give up or is there some other action I should take?</p>
</div><div><p class="MsoNormal"> </p></div><div><p class="MsoNormal">There is no monetary risk at this point for us - this is really just for testing and all details such as IPs are going to change if and when we would start using it.</p>
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