Stephen Northcutt, SANS Director, make a pcap contest (see here) where the
.pcap file had a hidden information in checksum field. I solved it using wireshark and it was an interesting activity.
So, I would like to do some challenge based in the Stephen's contest. How can I modify a set of packets to do some contest like these?
In advance, I apologize if I'm using the wrong community to ask this question. I didn't found another more appropriate.