Ubuntu下单网卡多IP地址的配置

[1]删除用户默认配置文件
由于在默认清空下，配置文件是系统自动生成的用户设备配置文件保存在
/etc/udev/rule.d/下面

#cp /etc/udev/rule.d /etc/udev/rule.d.bak.0 -R
# rm /etc/udev/rule.d/*

[2]修改网卡配置文件，添加多IP配置
#vim /etc/network/interfaces

为如下内容
auto lo
iface lo inet loopback


auto eth0
iface eth0 inet static
address 192.168.76.192
netmask 255.255.255.0
gateway 192.168.76.254



auto eth0:0
iface eth0:0 inet static
address 192.168.76.193
netmask 255.255.255.0
gateway 192.168.76.254



auto eth0:1
iface eth0:1 inet static
address 192.168.76.194
netmask 255.255.255.0
gateway 192.168.76.254


实验环境，我添加了三个IP地址


[3]让配置生效
#/etc/init.d/networking restart

[4]检查效果
#ifconfig
eth0      Link encap:Ethernet  HWaddr -------------------------------
          inet addr:192.168.76.192  Bcast:192.168.76.255  Mask:255.255.255.0
          inet6 addr: fe80::92e6:baff:fea0:b517/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:17278 errors:0 dropped:0 overruns:0 frame:0
          TX packets:7044 errors:0 dropped:0 overruns:0 carrier:1
          collisions:0 txqueuelen:1000
          RX bytes:8162087 (8.1 MB)  TX bytes:1085377 (1.0 MB)
          Interrupt:30

eth0:0    Link encap:Ethernet  HWaddr -------------------------------  
          inet addr:192.168.76.193  Bcast:192.168.76.255  Mask:255.255.255.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          Interrupt:30

eth0:1    Link encap:Ethernet  HWaddr -------------------------------
          inet addr:192.168.76.194  Bcast:192.168.76.255  Mask:255.255.255.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          Interrupt:30

可以看到三个IP地址，就说明配置成功了。