1. Check hardware address
[root@SAMprimer ~]# ifconfig -a
eth1 Link encap:Ethernet HWaddr 00:0C:29:55:44:33
inet addr:192.168.1.10 Bcast:192.168.5.255 Mask:255.255.255.0
inet6 addr: fe80::20c:29ff:fe54:5242/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:6757447 errors:0 dropped:0 overruns:0 frame:0
TX packets:3520232 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:9595152162 (8.9 GiB) TX bytes:298962001 (285.1 MiB)