1、查看网卡信息
ip addr 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 16436 qdisc noqueue state UNKNOWN link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 inet 127.0.0.1/8 scope host lo inet6 ::1/128 scope host valid_lft forever preferred_lft forever 2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000 link/ether 00:0c:29:0a:69:59 brd ff:ff:ff:ff:ff:ff inet 192.168.100.162/24 brd 192.168.100.255 scope global eth0 inet6 fe80::20c:29ff:fe0a:6959/64 scope link valid_lft forever preferred_lft forever 3: eth1: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN qlen 1000 link/ether 00:0c:29:0a:69:63 brd ff:ff:ff:ff:ff:ff
2、复制配置文件，并修改DEVICE、IPADDR和HWADDR
cd /etc/sysconfig/network-scripts/ cp ifcfg-eth0 ifcfg-eth1 cat ifcfg-eth0 DEVICE=eth0 TYPE=Ethernet UUID=c9c43a0d-439b-4855-9058-56edf186bf74 ONBOOT=yes NM_CONTROLLED=yes BOOTPROTO=none IPADDR=192.168.100.162 PREFIX=24 GATEWAY=192.168.100.1 DEFROUTE=yes IPV4_FAILURE_FATAL=yes IPV6INIT=no NAME="System eth0" HWADDR=00:0C:29:0A:69:59 LAST_CONNECT=1446137377 vim ifcfg-eth1 DEVICE=eth1 TYPE=Ethernet UUID=c9c43a0d-439b-4855-9058-56edf186bf74 ONBOOT=yes NM_CONTROLLED=yes BOOTPROTO=none IPADDR=192.168.100.163 PREFIX=24 GATEWAY=192.168.100.1 DEFROUTE=yes IPV4_FAILURE_FATAL=yes IPV6INIT=no NAME="System eth1" HWADDR=00:0c:29:0a:69:63 LAST_CONNECT=1446137377
3、重启网络服务
service network restart
