Hey,
I just learned about tcpreplay. I had some files created with tcpdump that
captured udp traffic from a multicast. Using tcpreplay I was able to play
back the files on a different network and I am able to see the traffic with
tcpdump on the machine running tcpreplay. But for some reason I cannot capture
the udp packets using standard c code. I use both select and recvfrom() and I
know my code works correctly.
I also noticed that if a run tcpreplay on another machine, I don't see the
packets from tcpdump.
I've attempted to use tcprewrite but have had no success...
tcprewrite --pnat=<original source ip>:<the machine for tcpreplay>
--infile=myfile.tcpdump --outfile=myfile.pcap --fixcsum --skipl2broadcast
Does anyone know how to do this?
Eyon
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