tcp stream replay tool

Question

I'm looking for a tool for recording and replaying one side of a TCP stream for testing. I see tools which record the entire TCP stream (both server and client) for testing firewalls and such, but what I'm looking for is a tool which would record just the traffic submitted by the client (with timing information) and then resubmit it to the server for testing.

Answer 1

Record a packet capture of the full TCP client/server communication. Then, you can use tcpliveplay to replay just the client side of the communication to a real server. tcpliveplay will generate new sequence numbers, IP addresses, MAC addresses, etc, so the communication will flow properly.