keypoint> #man ifconfig

<ex>
(6)[stone]/ > ifconfig -a
lo0: flags=849<UP,LOOPBACK,RUNNING,MULTICAST> mtu 8232
inet 127.0.0.1 netmask ff000000
le0: flags=863<UP,BROADCAST,NOTRAILERS,RUNNING,MULTICAST> mtu 1500
inet 210.121.188.7 netmask ffffff00 broadcast 210.121.188.255
ether 8:0:20:7c:78:91
(7)[stone]/ >
(8)[stone]/ > ifconfig le0 inet 210.121.188.8 netmask 255.255.255.0
(9)[stone]/ >
(9)[stone]/ > ifconfig -a
lo0: flags=849<UP,LOOPBACK,RUNNING,MULTICAST> mtu 8232
inet 127.0.0.1 netmask ff000000
le0: flags=863<UP,BROADCAST,NOTRAILERS,RUNNING,MULTICAST> mtu 1500
inet 210.121.188.8 netmask ffffff00 broadcast 210.121.188.255
ether 8:0:20:7c:78:91
(10)[stone]/ >

재부팅후에도 바뀐 아이피로 시스템을 운용하고자 할경우는

/etc/hosts 파일에 아이피를 바꿔주고 재부팅하면된다.