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--></style></head><body lang="ES-CL" link="blue" vlink="purple"><div class="WordSection1"><p class="MsoNormal"><span lang="EN-US">Hello.</span></p><p class="MsoNormal"><span lang="EN-US">I was wondering if someone could help me here. From time to time I stat to receive from the internet this SIP message :</span></p>
<p class="MsoNormal"><span lang="EN-US"> </span></p><p class="MsoNormal"><span lang="EN-US">U <a href="http://190.22.140.170:51316">190.22.140.170:51316</a> -> <a href="http://64.76.154.110:5060">64.76.154.110:5060</a></span></p>
<p class="MsoNormal"><span lang="EN-US">SIP/2.0 400 BadRequest.</span></p><p class="MsoNormal"><span lang="EN-US">Via: .</span></p><p class="MsoNormal"><span lang="EN-US">From: .</span></p><p class="MsoNormal"><span lang="EN-US">To: .</span></p>
<p class="MsoNormal"><span lang="EN-US">Call-ID: .</span></p><p class="MsoNormal"><span lang="EN-US">CSeq: .</span></p><p class="MsoNormal"><span lang="EN-US">User-Agent: AddPac SIP Gateway.</span></p><p class="MsoNormal">
<span lang="EN-US">Content-Length: 0.</span></p><p class="MsoNormal"><span lang="EN-US">.</span></p><p class="MsoNormal"><span lang="EN-US"> </span></p><p class="MsoNormal"><span lang="EN-US">At burst rate of 124 pps (packets per second), this meesage is entering to Kamailio routine and generating a lot of ERROR logs lie these : <br>
<br></span></p><p class="MsoNormal"><span lang="EN-US">Apr 1 03:32:19 kmborde /usr/local/sbin/kamailio[2311]: ERROR: <core> [parser/msg_parser.c:179]: ERROR: get_hdr_field: bad to header</span></p><p class="MsoNormal">
<span lang="EN-US">Apr 1 03:32:19 kmborde /usr/local/sbin/kamailio[2311]: INFO: <core> [parser/msg_parser.c:353]: ERROR: bad header field [To: <sip:Re</span></p><p class="MsoNormal"><span lang="EN-US">gister=>5]</span></p>
<p class="MsoNormal"><span lang="EN-US">Apr 1 03:32:19 kmborde /usr/local/sbin/kamailio[2311]: ERROR: <core> [parser/msg_parser.c:179]: ERROR: get_hdr_field: bad to header</span></p><p class="MsoNormal"><span lang="EN-US">Apr 1 03:32:19 kmborde /usr/local/sbin/kamailio[2311]: INFO: <core> [parser/msg_parser.c:353]: ERROR: bad header field [To: <sip:Re</span></p>
<p class="MsoNormal"><span lang="EN-US">gister=>5]</span></p><p class="MsoNormal"><span lang="EN-US">Apr 1 03:32:19 kmborde /usr/local/sbin/kamailio[2311]: ERROR: <core> [parser/msg_parser.c:179]: ERROR: get_hdr_field: bad to header</span></p>
<p class="MsoNormal"><span lang="EN-US">Apr 1 03:32:19 kmborde /usr/local/sbin/kamailio[2311]: INFO: <core> [parser/msg_parser.c:353]: ERROR: bad header field [To: <sip:Re</span></p><p class="MsoNormal"><span lang="EN-US">gister=>5]</span></p>
<p class="MsoNormal"><span lang="EN-US">Apr 1 03:32:19 kmborde /usr/local/sbin/kamailio[2311]: ERROR: <core> [msg_translator.c:1943]: ERROR: build_res_buf_from_sip_req: al</span></p><p class="MsoNormal"><span lang="EN-US">as, parse_headers failed</span></p>
<p class="MsoNormal"><span lang="EN-US">Apr 1 03:32:19 kmborde /usr/local/sbin/kamailio[2311]: WARNING: sanity [sanity.c:254]: sanity_check(): check_required_headers(): fa</span></p><p class="MsoNormal"><span lang="EN-US">iled to send 400 via sl reply</span></p>
<p class="MsoNormal"><span lang="EN-US">Apr 1 03:32:20 kmborde /usr/local/sbin/kamailio[2301]: ERROR: <core> [parser/msg_parser.c:179]: ERROR: get_hdr_field: bad to header</span></p><p class="MsoNormal"><span lang="EN-US">Apr 1 03:32:20 kmborde /usr/local/sbin/kamailio[2301]: INFO: <core> [parser/msg_parser.c:353]: ERROR: bad header field [To: <sip:Re</span></p>
<p class="MsoNormal"><span lang="EN-US">gister=>5]</span></p><p class="MsoNormal"><span lang="EN-US">Apr 1 03:32:20 kmborde /usr/local/sbin/kamailio[2301]: ERROR: <core> [parser/msg_parser.c:179]: ERROR: get_hdr_field: bad to header</span></p>
<p class="MsoNormal"><span lang="EN-US">Apr 1 03:32:20 kmborde /usr/local/sbin/kamailio[2301]: INFO: <core> [parser/msg_parser.c:353]: ERROR: bad header field [To: <sip:Re</span></p><p class="MsoNormal"><span lang="EN-US">gister=>5]</span></p>
<p class="MsoNormal"><span lang="EN-US">Apr 1 03:32:20 kmborde /usr/local/sbin/kamailio[2301]: ERROR: <core> [parser/msg_parser.c:179]: ERROR: get_hdr_field: bad to header</span></p><p class="MsoNormal"><span lang="EN-US">Apr 1 03:32:20 kmborde /usr/local/sbin/kamailio[2301]: INFO: <core> [parser/msg_parser.c:353]: ERROR: bad header field [To: <sip:Re</span></p>
<p class="MsoNormal"><span lang="EN-US">gister=>5]</span></p><p class="MsoNormal"><span lang="EN-US">Apr 1 03:32:20 kmborde /usr/local/sbin/kamailio[2301]: ERROR: <core> [msg_translator.c:1943]: ERROR: build_res_buf_from_sip_req: al</span></p>
<p class="MsoNormal"><span lang="EN-US">as, parse_headers failed</span></p><p class="MsoNormal"><span lang="EN-US">Apr 1 03:32:20 kmborde /usr/local/sbin/kamailio[2301]: WARNING: sanity [sanity.c:254]: sanity_check(): check_required_headers(): fa</span></p>
<p class="MsoNormal"><span lang="EN-US">iled to send 400 via sl reply</span></p><p class="MsoNormal"><span lang="EN-US">Apr 1 03:32:23 kmborde /usr/local/sbin/kamailio[2320]: ERROR: <core> [parser/msg_parser.c:179]: ERROR: get_hdr_field: bad to header</span></p>
<p class="MsoNormal"><span lang="EN-US">Apr 1 03:32:23 kmborde /usr/local/sbin/kamailio[2320]: INFO: <core> [parser/msg_parser.c:353]: ERROR: bad header field [To: <sip:Re</span></p><p class="MsoNormal"><span lang="EN-US">gister=>5]</span></p>
<p class="MsoNormal"><span lang="EN-US">Apr 1 03:32:23 kmborde /usr/local/sbin/kamailio[2320]: ERROR: <core> [parser/msg_parser.c:179]: ERROR: get_hdr_field: bad to header</span></p><p class="MsoNormal"><span lang="EN-US">Apr 1 03:32:23 kmborde /usr/local/sbin/kamailio[2320]: INFO: <core> [parser/msg_parser.c:353]: ERROR: bad header field [To: <sip:Re</span></p>
<p class="MsoNormal"><span lang="EN-US">gister=>5]</span></p><p class="MsoNormal"><span lang="EN-US">Apr 1 03:32:23 kmborde /usr/local/sbin/kamailio[2320]: ERROR: <core> [parser/msg_parser.c:179]: ERROR: get_hdr_field: bad to header</span></p>
<p class="MsoNormal"><span lang="EN-US">Apr 1 03:32:23 kmborde /usr/local/sbin/kamailio[2320]: INFO: <core> [parser/msg_parser.c:353]: ERROR: bad header field [To: <sip:Re</span></p><p class="MsoNormal"><span lang="EN-US">gister=>5]</span></p>
<p class="MsoNormal"><span lang="EN-US">Apr 1 03:32:23 kmborde /usr/local/sbin/kamailio[2320]: ERROR: <core> [msg_translator.c:1943]: ERROR: build_res_buf_from_sip_req: al</span></p><p class="MsoNormal"><span lang="EN-US">as, parse_headers failed</span></p>
<p class="MsoNormal"><span lang="EN-US">Apr 1 03:32:23 kmborde /usr/local/sbin/kamailio[2320]: WARNING: sanity [sanity.c:254]: sanity_check(): check_required_headers(): fa</span></p><p class="MsoNormal"><span lang="EN-US">iled to send 400 via sl reply</span></p>
<p class="MsoNormal"><span lang="EN-US"> </span></p><p class="MsoNormal"><span lang="EN-US"> </span></p><p class="MsoNormal"><span lang="EN-US">The only way that I have now for blocking this packet to hit the Kamailio server is via iptables : </span></p>
<p class="MsoNormal"><span lang="EN-US">iptables -A INPUT -s 190.22.140.170 -p udp --dport 5060 --jump REJECT</span></p><p class="MsoNormal"><span lang="EN-US"> </span></p><p class="MsoNormal"><span lang="EN-US">Is there a better way to do this?!</span></p>
<p class="MsoNormal"><span lang="EN-US">Thanks in advance,</span></p><p class="MsoNormal" style="margin-top:3.0pt"><b><span lang="EN-US" style="font-size:10.0pt;font-family:"Arial","sans-serif";color:black"> </span></b></p>
<p class="MsoNormal" style="margin-top:3.0pt"><b><span lang="EN-US" style="font-size:10.0pt;font-family:"Arial","sans-serif";color:black">Ricardo Martinez.-</span></b><span lang="EN-US" style="font-size:9.0pt;font-family:"Trebuchet MS","sans-serif";color:#7f7f7f"> </span><span lang="ES" style></span></p>
<p class="MsoNormal"> </p></div></body></html>