Specify whether frames can hit the action according to their ARP/RARP hardware address length (HLN) and
protocol address length (PLN) settings.
default: 2,
0: ARP/RARP frames where the HLN is not equal to Ethernet(0x06) or the (PLN) is not equal to IPv4(0x04).
1: ARP/RARP frames where the HLN is equal to Ethernet (0x06) and the (PLN) is equal to IPv4(0x04).
2: Any - Don't care.
3: No data.
range : 0 - 2