How do you set an interface to permanent promiscuous mode in RHEL 7?

Solution Verified - Updated -

Issue

  • I have reviewed the documentation in the knowledge center and surfed Googled and found some information. I did the recommended commands and edited files recommended, but promiscuous mode is not persistent across reboots.
  • Unable to configure an interface into promiscuous mode permanently.

Environment

  • Red Hat Enterprise Linux (RHEL) 7
  • NetworkManager or network initscript
  • Network interface

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