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I want to create a system for fast packet processing on rhel 7.1, but kernel version does not enable solutions like kernel-bypass networking. Since I am not allowed to upgrade kernel because of security certificate issues, it seems that best option is using raw sockets. I do not want to implement handshake,congestion window, ack-seq tracking etc.

Do you have any library/framework suggestions for the specified purposes?

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    Any programming language will have libraries to manipulate raw sockets. But then if you want to do TCP/IP you have to implement everything yourself. On command line you have this powerful tool: secdev.org/projects/scapy – Patrick Mevzek Feb 16 '18 at 14:37

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