ifconfig <インタフェース名>
例)
root$>ifconfig eth0 eth0 Link encap:Ethernet HWaddr XX:XX:XX:XX:XX:XX ← MACアドレス inet addr:172.26.200.11 Bcast:172.26.200.255 Mask:255.255.255.0 inet6 addr: fe80::20c:29ff:fe2d:fc6e/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:126 errors:0 dropped:0 overruns:0 frame:0 TX packets:171 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:13097 (12.7 KiB) TX bytes:34839 (34.0 KiB) Interrupt:75 Base address:0x2000