Hello all,
I want to drop the sip packets which have *to* and *contact* field empty. *INVITE sip:******************* SIP/2.0 Record-Route: Via: SIP/2.0/UDP *********;branch=z9hG4bK0e44.f7bd2db2.0 Via: SIP/2.0/UDP ************:5060;received=*********;branch=z9hG4bK78f0df76;rport=1122 Max-Forwards: 69 From: "1014" ;tag=as2fff3730 To: Contact: Call-ID: **********@********* CSeq: 103 INVITE User-Agent: Asterisk PBX 1.6.2.9-2ubuntu2.1 Date: Wed, 09 Oct 2013 15:16:20 GMT Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY, INFO Supported: replaces, timer Content-Type: application/sdp Content-Length: 311 * * **How can I identify such packets and drop them? * *logs for opensips:* *Oct 9 17:16:00 voip /usr/local/sbin/opensips[32325]: ERROR:core:parse_first_line: bad request first line Oct 9 17:16:00 voip /usr/local/sbin/opensips[32325]: ERROR:core:parse_first_line: at line 0 char 42: Oct 9 17:16:00 voip /usr/local/sbin/opensips[32325]: ERROR:core:parse_first_line: parsed so far: INVITE sip:***********************:5060 Oct 9 17:16:00 voip /usr/local/sbin/opensips[32325]: INFO:core:parse_first_line: bad message > sendrecv 0-16lephone-event/8000 *************SUBSCRIBE, NOTIFY, INFOg: message=<INVITE sip:*************:5060 SIP/2.0 Oct 9 17:16:00 voip /usr/local/sbin/opensips[32325]: ERROR:core:receive_msg: parse_msg failed Oct 9 17:16:04 voip /usr/local/sbin/opensips[32303]: ERROR:core:parse_first_line: bad request first line Oct 9 17:16:04 voip /usr/local/sbin/opensips[32303]: ERROR:core:parse_first_line: at line 0 char 42: Oct 9 17:16:04 voip /usr/local/sbin/opensips[32303]: ERROR:core:parse_first_line: parsed so far: INVITE sip:****************:5060 Oct 9 17:16:04 voip /usr/local/sbin/opensips[32303]: INFO:core:parse_first_line: bad message > sendrecv 0-16lephone-event/*******************SUBSCRIBE, NOTIFY, INFOg: message=<INVITE sip:*****************:5060 SIP/2.0 Oct 9 17:16:04 voip /usr/local/sbin/opensips[32303]: ERROR:core:receive_msg: parse_msg failed *
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