配置一系列IP地址

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魔都搬砖 2018-01-12 18:05:12 博主文章分类：【操作系统】

文章标签 linux 文章分类 运维

在linux下，配置多个IP的话，通常是eth0.0.. eth0.1 ..eth0.x等等，那么如果要配置大量的IP呢，这么配置也是可以的，但是繁琐，虽说这种情况很少。对于添加大量IP，有一定规定的，RHCE / CentOS 系统提供绑定一个IP范围快速的方法让我们不再需要创建大量的文件，节省时间。如：

# vim /etc/sysconfig/network-scripts/ifcfg-eth0-range0
IPADDR_START=192.168.1.199
IPADDR_END=192.168.1.249
CLONENUM_START=0
NETMASK=255.255.255.0

IPADDR_START是第一IP, IPADDR_END是最后一个IP。 CLONENUM_START是将被分配给一系列的接口开始编号（该实例中是从eth0：0开始的）。激活网卡：

ifdown eth0 && ifup eth0

结果如下

eth0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 10.253.7.221  netmask 255.255.248.0  broadcast 10.253.7.255
        ether 00:16:3e:0c:27:5a  txqueuelen 1000  (Ethernet)
        RX packets 491927058  bytes 80354909662 (74.8 GiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 417715253  bytes 63353677248 (59.0 GiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

eth0:0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.1.199  netmask 255.255.255.0  broadcast 192.168.1.255
        ether 00:16:3e:0c:27:5a  txqueuelen 1000  (Ethernet)

eth0:1: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.1.200  netmask 255.255.255.0  broadcast 192.168.1.255
        ether 00:16:3e:0c:27:5a  txqueuelen 1000  (Ethernet)

eth0:2: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.1.201  netmask 255.255.255.0  broadcast 192.168.1.255
        ether 00:16:3e:0c:27:5a  txqueuelen 1000  (Ethernet)

eth0:3: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.1.202  netmask 255.255.255.0  broadcast 192.168.1.255
        ether 00:16:3e:0c:27:5a  txqueuelen 1000  (Ethernet)

eth0:4: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.1.203  netmask 255.255.255.0  broadcast 192.168.1.255
        ether 00:16:3e:0c:27:5a  txqueuelen 1000  (Ethernet)

eth0:5: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.1.204  netmask 255.255.255.0  broadcast 192.168.1.255
        ether 00:16:3e:0c:27:5a  txqueuelen 1000  (Ethernet)

eth0:6: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.1.205  netmask 255.255.255.0  broadcast 192.168.1.255
        ether 00:16:3e:0c:27:5a  txqueuelen 1000  (Ethernet)

eth0:7: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.1.206  netmask 255.255.255.0  broadcast 192.168.1.255
        ether 00:16:3e:0c:27:5a  txqueuelen 1000  (Ethernet)

eth0:8: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.1.207  netmask 255.255.255.0  broadcast 192.168.1.255
        ether 00:16:3e:0c:27:5a  txqueuelen 1000  (Ethernet)
				……