1 使用 arp -a ,arp 查看 缓存表
[[email protected] ~]# arp -a
? (192.168.40.1) at 00:50:56:C0:00:08 [ether] on eth1
? (192.168.40.1) at 00:50:56:C0:00:08 [ether] on eth0
[[email protected] ~]# arp
Address HWtype HWaddress Flags Mask Iface
192.168.40.1 ether 00:50:56:C0:00:08 C eth1
192.168.40.1 ether 00:50:56:C0:00:08 C eth0
192.168.40.2 ether 00:50:56:EA:DB:BD C eth0
c 代表缓存,m 是静态地址
2 建一个静态的mac–>ip对应表文件:ip_mac,
echo 192.168.40.2 00:50:56:EA:DB:BD >/etc/ip_mac
3 arp -f /etc/ip_mac 绑定地址
4 查看结果 arp
[[email protected] ~]# arp
Address HWtype HWaddress Flags Mask Iface
192.168.40.1 ether 00:50:56:C0:00:08 C eth1
192.168.40.254 ether 00:50:56:E6:5D:9E C eth0
192.168.40.1 ether 00:50:56:C0:00:08 C eth0
192.168.40.2 ether 00:50:56:EA:DB:BD CM
————————————————————–
arp -a
[[email protected] ~]# arp -a
? (192.168.40.1) at 00:50:56:C0:00:08 [ether] on eth1
? (192.168.40.1) at 00:50:56:C0:00:08 [ether] on eth0
? (192.168.40.2) at 00:50:56:EA:DB:BD [ether] PERM on eth0
5 加入到开机启动
echo arp -f /etc/ip_mac >>/etc/rc.local