Hi , I want to match certain TCP flags such as SYN, FYN in each TCP connection sent between host and destination. In RYU source code for openFlow13 what should exactly modify? Actually, in the switch feature class I do:
match = parse.OFPMatch(eth_type=2048, eth_type=0x0800, ip_proto=6, tcp_flags=3) In Packet-In class I just extract the tcp.tcp packet from the original data. Then, I print its result to see what its contents are. Thus, I didn`t find the flags except an ACK flag. However, In general, What should I modify in the code to print in the controller side each SYN and FIN flags for every TCP connection sent between two hosts? If you do a simple code example for me will be so appreciated. Thank you
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