XINU features an automatic address resolution protocol. The ARP daemon is run automaticall on start up and waits for incoming arp packets. Incoming packets are filtered through netRecv and ARP requests/replies are sent on to the ARP Daemon.
To print the arp table run the arp command from the XINU shell eg
Address HWaddress Interface 192.168.6.10 52:54:03:02:B1:06 ETH0 192.168.6.101 00:16:B6:28:7D:4F ETH0 192.168.6.130 00:25:9C:3A:87:53 ETH0