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sipxtract

sipxtract is a small tool to extract SIP telephony calls from a PCAP source. It's pretty fast and scans through huge (>50 GB) PCAP dump file in just a few seconds.

After extraction you can proceed with your normal workflow and load your files in wireshark, tshark or sipgrep.

Installation

$ go install github.com/maurice2k/sipxtract@latest
$ $GOPATH/bin/sipxtract -h

Sample usage

$ sipxtract -v --in huge-50gb-sip-traffic.pcap 7aed7162-d029-49b2-868a-84e38ff56ea1 010fe5bf-3cd6-44ab-a1c7-691fe85cfa2d >relevant-calls.pcap

This would extract SIP and RTP packets for SIP calls matching the given Call-Ids 7aed7162-d029-49b2-868a-84e38ff56ea1 and 010fe5bf-3cd6-44ab-a1c7-691fe85cfa2d into relevant-calls.pcap file. By default extraction will be stopped as soon as the given SIP calls are completed protocol-wise unless you specify --full-scan. This will scan through all packets available regardless of the state of the corresponding SIP call.

Available command line options

Usage:
  sipxtract [OPTIONS] [Call-Id...]

Application Options:
      --in=        Source PCAP file (default: STDIN)
      --out=       Output PCAP file (default: STDOUT)
  -p, --port=      SIP port filter (multiple ports allowed) (default: 5060)
      --skip-rtp   Skip RTP media packets
      --full-scan  Do a full scan even though given calls seem to be finished
  -v, --verbose    Show verbose information
      --version    Show sipxtract version

Help Options:
  -h, --help       Show this help message

Arguments:
  Call-Id:         SIP Call-Id header value

License

sipxtract is available under the MIT license.