Linux ifconfig命令

ifconfig [接口] [选项| IP地址]

[root@rhel ～]# ifconfig eth0192.168.0.2 netmask 255.255.255.0 up

[root@rhel ～]# ifconfig eth0:1192.168.0.3

[root@rhel ～]# ifconfig eth0:1 up

[root@rhel ～]# ifconfig eth0
eth0      Link encap:Ethernet  HWaddr 00:0C:29:FC:2F:E5
        inet addr:192.168.0.2  Bcast:192.168.0.255  Mask:255.255.255.0
        inet6 addr: fe80::20c:29ff:fefc:2fe5/64 Scope:Link
        UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
        RX packets:11833 errors:0 dropped:0 overruns:0 frame:0
        TX packets:14789 errors:0 dropped:0 overruns:0 carrier:0
        collisions:0 txqueuelen:1000
        RX bytes:953120(930.7 KiB)  TX bytes:12258316(11.6 MiB)
//eth0网卡的IP地址是192.168.0.2, MAC地址是00:0C:29:FC:2F:E5

[root@rhel ～]# ifconfig
eth0      Link encap:Ethernet  HWaddr 00:0C:29:FC:2F:E5
        inet addr:192.168.0.2  Bcast:192.168.0.255  Mask:255.255.255.0
        inet6 addr: fe80::20c:29ff:fefc:2fe5/64 Scope:Link
        UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
        RX packets:11802 errors:0 dropped:0 overruns:0 frame:0
        TX packets:14766 errors:0 dropped:0 overruns:0 carrier:0
        collisions:0 txqueuelen:1000
        RX bytes:950646(928.3 KiB)  TX bytes:12253702(11.6 MiB)
eth0:1    Link encap:Ethernet  HWaddr 00:0C:29:FC:2F:E5
        inet addr:192.168.0.3  Bcast:192.168.0.255  Mask:255.255.255.0
        UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
lo       Link encap:Local Loopback
        inet addr:127.0.0.1  Mask:255.0.0.0
        inet6 addr: ::1/128 Scope:Host
        UP LOOPBACK RUNNING  MTU:16436  Metric:1
        RX packets:340 errors:0 dropped:0 overruns:0 frame:0
        TX packets:340 errors:0 dropped:0 overruns:0 carrier:0
        collisions:0 txqueuelen:0
        RX bytes:28910(28.2 KiB)  TX bytes:28910(28.2 KiB)

[root@rhel ～]# ifconfig -a

[root@rhel ～]# ifconfig eth0:1 down

[root@rhel ～]# ifconfig eth0 hw ether 00:0C:29:18:2E:3D