How to bundle dual IPs with a single network card under the Linux operating system

Author：Eve Cole Update Time：2009-06-04 17:55:32

1. Configure the first IP address:

[root@Linux root]#cd /etc/sysconfig/network-scripts

[root@Linux network-scripts]#vi ifcfg-eth0

DEVICE=eth0

BOOTPROTO=static

BROADCAST=192.168.80.255 //*broadcast address*//

IPADDR=192.168.80.189 //*First IP address*//

NETMASK=255.255.255.0 //*Network mask*//

NETWORK=192.168.80.0 //*Network segment*//

ONBOOT=yes

:wq //*Save and exit*//

2. Copy the first IP address configuration file to the second IP address configuration file, and modify the IP address inside:

[root@Linux network-scripts]#cp ifcfg-eth0 ifcfg-eth1

[root@Linux network-scripts]#vi ifcfg-eth1

DEVICE=eth0

BOOTPROTO=static

BROADCAST=192.168.80.255 //*broadcast address*//

IPADDR=192.168.80.199 //*Second IP address*//

NETMASK=255.255.255.0 //*Network mask*//

NETWORK=192.168.80.0 //*Network segment*//

ONBOOT=yes

:wq //*Save and exit*//

3. Restart the network card:

[root@Linux network-scripts]#service network restart

or:

[root@Linux network-scripts]#ifdown eth0

[root@Linux network-scripts]#ifup eth0

[root@Linux network-scripts]#ifconfig eth0 down

[root@Linux network-scripts]#ifconfig eth0 up