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O 1. 192.168.1.37 » 192.168.1.87 sip/sdp/isup(itu) Request: INVITE sip:1234@192.168.1.87;user=phone, with session description, ISUP:IAM
O 2. 192.168.1.87 » 192.168.1.37 sip Status: 100 Trying
O 3. 192.168.1.87 » 192.168.1.37 sip/sdp/isup(itu) Status: 180 Ringing, with session description, ISUP:ACM[Packet size limited during capture]
O 4. 192.168.1.87 » 192.168.1.37 sip/sdp/isup(itu) Status: 200 OK, with session description, ISUP:ANM
O 5. 192.168.1.37 » 192.168.1.87 sip Request: ACK sip:1234@192.168.1.87

Here are some of things that registered users can do with this pcap:

  • Reorder packets
  • Fragment packets
  • Reassemble TCP streams
  • Rewrite TCP streams (over IPv4 and IPv6)
  • Extract embedded HTTP content
  • Convert any packet into a DoS generator