bittwist 2.0 - tool to generate and edit pcaps

bittwist can be used to:
- Send multiple packet traces at a time
- Send packets at a specific speed or line rate in Mbps
- Edit fields in Ethernet, ARP, IP, ICMP, TCP, and UDP headers
- Automatic header checksum correction
- Append user payload to existing packets after a specific header
- Select a specific range of packets and save them in another trace file