常用网络指令

ifconfig

用法：

interface
The name of the interface. This is usually a driver name
followed by a unit number, for example eth0 for the first
Ethernet interface.

[root@zkero ~]# ifconfig eth0
eth0      Link encap:Ethernet  HWaddr 00:0C:29:88:40:17  
          inet addr:192.168.201.128  Bcast:192.168.201.255  Mask:255.255.255.0
          inet6 addr: fe80::20c:29ff:fe88:4017/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:854 errors:0 dropped:0 overruns:0 frame:0
          TX packets:287 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:92365 (90.2 KiB)  TX bytes:47084 (45.9 KiB)

eth0：网络卡代号

HWaddr：网卡硬件地址，即MAC地址

inet addr：IPV4的ip地址

Broadcast：广播地址

netmask：子网掩码