I can disable outgoing and incoming TCP Offload on MACOS in user's .bash_profile file:
sudo sysctl net.link.generic.system.hwcksum_tx=0
sudo sysctl net.link.generic.system.hwcksum_rx=0
This stops the incessant Wireshark "TCP CHECKSUM INVALID" outgoing ipv4 packets. How do I do the same for CentOS 7?
I want the Wireshark reports only about the real invalid TCP Checksum packets. So I have checked the box under Protocols->TCP "Validate the TCP checksum if possible".