if u are connected to your router .. simply
route -n to get your gateway address (ex: 192.168.1.1)
arp -a find 192.168.1.1 and it will show the router mac beside.
route -n to get your gateway address (ex: 192.168.1.1)
arp -a find 192.168.1.1 and it will show the router mac beside.