I need network logger utility with ability to replay the data it collected, for example, I will record incoming data on UDP port 1234 for 10 minutes, record it to file, then replay that data (with same timing) to some other address:port.
I feel that it should be posted here, since it concerns development, not admin-ing.
EDIT:
It has to run on windows, and it can be standalone process that will listen to UDP port exclusively, so it doesn't have to be 'sniffer'.
You might want to have a look at tcpreplay. It should do what you want to do when used in conjuction with Wireshark or tcpdump.