How to tell which process sent ping or other ICMP?

Solution In Progress - Updated -

Issue

  • How to tell which process sent ping or other ICMP?
  • We see ping request, which process is sending it?
  • ICMP Echo Reply leaves the system, but no ICMP Echo Request arrives, what is doing this?

Environment

  • Red Hat Enterprise Linux
  • IPv4 networking
  • ICMP echo traffic like ping

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