ethernet create-interfaces
set int state fake-eth0 up
set int ip address fake-eth0 1.0.0.1/24
comment { error }
comment { ip probe fake-eth0 1.0.0.1 }
comment { ip probe fake-eth0 1.2.3.4 }
comment { error }
comment { ip probe fake-eth0 1.0.0.2 }