"RTNETLINK answers: File exists" when trying to create a static network route to the local base network on Red Hat Enterprise Linux

Solution Verified - Updated -

Issue

  • Add route showing errors:
    # ip route add 192.168.X.X/24 via 192.168.X.X dev eth0
    RTNETLINK answers: File exists
    

Environment

  • Red Hat Enterprise Linux 5
  • Red Hat Enterprise Linux 6

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