Linux对网卡配置多个虚拟IP地址-蒲公英云

Linux对网卡配置多个虚拟IP地址

一、临时增加ip

#ifconfig eth0:0 192.168.6.100 netmask 255.255.255.0 up
#ifconfig eth0:1 173.173.173.173 netmask 255.255.255.0 up
#ifconfig eth0:2 119.110.120.1 netmask 255.255.255.0 up
......

eth0:x //虚拟网络接口，建立在eth0上，取值范围0-255
192.168.6.xxx //增加ip别名，想加多少就加多少～～

#ifconfig

设置完我们if一下看看，如图所示，增加的ip都已经生效了

#ping 192.168.6.100
#ping 173.173.173.173
#ping 119.110.120.1

然后在本机分别ping一下这几个ip，如果此时不再用的话，那么可以通过down的方式来实现对配置网卡的重启，命令如下：

#ifconfg eth0:0 down
#ifconfg eth0:1 down
#ifconfg eth0:2 down

一、永久增加ip

1 编辑ifcfg-eth0:0

配置文件在/etc/sysconfig/network-scripts/路径下。

cd /etc/sysconfig/network-scripts/
# more ifcfg-eth0
DEVICE=eth0
TYPE=Ethernet
ONBOOT=yes
NM_CONTROLLED=yes
BOOTPROTO=static
IPADDR=192.168.99.159
NETMASK=255.255.255.0
# more ifcfg-eth0:0
DEVICE=eth0:0
TYPE=Ethernet
ONBOOT=yes
NM_CONTROLLED=yes
BOOTPROTO=static
IPADDR=10.10.10.159
NETMASK=255.255.255.0

如果还想添加IP地址,可以同理编辑ifcfg-eth0:1文件.

2 重启网卡生效配置

service network restart

或者

ifconfig eth0 down
ifconfig eth0 up

ifconfig查看eth0的网卡信息:

# ifconfig
eth0      Link encap:Ethernet  HWaddr 2A:2E:BE:CF:8C:DC  
          inet addr:192.168.99.159  Bcast:192.168.99.255  Mask:255.255.255.0
          inet6 addr: fe80::282e:beff:fecf:8cdc/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:32989071 errors:0 dropped:0 overruns:0 frame:0
          TX packets:3800770 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:15974202540 (14.8 GiB)  TX bytes:11315842294 (10.5 GiB)
          Interrupt:247 
eth0:0    Link encap:Ethernet  HWaddr 2A:2E:BE:CF:8C:DC  
          inet addr:10.10.10.159  Bcast:10.10.10.255  Mask:255.255.255.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          Interrupt:247 
eth0:1    Link encap:Ethernet  HWaddr 2A:2E:BE:CF:8C:DC  
          inet addr:10.11.11.159  Bcast:10.11.11.255  Mask:255.255.255.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          Interrupt:247