===== COMMAND =====: arp -an
===== RETURN CODE =====: 0
===== STDOUT =====:
[10.20.0.4] out: ? (10.20.0.2) at 52:54:00:9b:42:c9 [ether] on enp6s0
[10.20.0.4] out: 

===== STDERR =====:
