arp

beyes

在 /etc/ethers 里配置网关MAC和IP对应地址：

beyes@linux-beyes:~/network> cat /etc/ethers
#
# ethers    This file contains 48 bit Ethernet addresses and their
#        corresponding IP number or hostname. The two items are
#        separated by any number of SPACE and/or TAB char acters.
#        A at the beginning of a line starts a comment which extends
#        to the end of the line. The Ethernet-address is written as
#        x:x:x:x:x:x, where x is a hexadecimal number between 0 and
#        ff which represents one byte of the address, which is in
#        network byte order (bigendian). The IP-number may be a
#        hostname which can be resolved by DNS or a dot separated
#        number.
#
# Syntax:
#    Ethernet-address    IP-number
#
#
04:4b:80:80:80:03 192.168.0.1

这样直接运行命令 arp -f 就可以实现对网关的绑定；查看一下 arp 缓存：

beyes@linux-beyes:~/network> sudo /sbin/arp
Address                  HWtype  HWaddress           Flags Mask            Iface
192.168.0.1              ether   04:4b:80:80:80:03   CM                    wlan0
192.168.0.104            ether   00:c0:9f:8d:06:77   C                     wlan0
192.168.174.129          ether   00:0c:29:14:19:a8   C                     vmnet8

上面，在 Flags Mask 里，看到 M 标志，表示绑定成功。

假如不是修改 /etc/ethers 文件，也可以编辑另外一个相应格式的文件，然后 arp -f 后面加上这个文件名即可。