Hello,

 

I am trying to rewrite the IP-Adresses of a pcap file. The manual says:

Note that --endpoints requires a cache file and use of --skipbroadcast is highly recommended.

I would like to know why these options are highly recommended.

The following error occurs if I use these options:

# tcprewrite --cachefile=tryin.cache --endpoints=224.224.0.73:224.224.0.73 --infile=simulatorCaptured.pcap --outfile=tryout.pcap --skipbroadcast

# tcprewrite: illegal option – skipbroadcast

This happens too, if I use no broadcast address in “–endpoints”.

Without “–cachefile” and “–skipbroadcast” option I get a tryout.pcap with the defined endpoints, but the UDPs of the output file seem to be broken in a way. They cannot be processed by application anymore after sending with tcpreplay.

 

Thx,

Marco

 

 

 

 

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