2 IP address on One NIC

[saurabh]

How to Set up 2 IP address on "One" NIC ???

[mazhar]

How to give multiple IP address to single NIC card

Cd into /etc/sysconfig/network-scripts
There is configuration file for for first Ethernet Card named as ifcfg-eth0 for first IP
Create a new file named as ifcfg-eth0:1 for second IP address
with following contents
----------------------------------------------------
DEVICE=eth0:1
IPADDR=192.168.0.2 # (IP address)
NETMASK=255.255.255.0 # (Netmask)
BOOTPROTO=static
ONBOOT=yes
----------------------------------------------------
Restart the Network Service
# service network restart

[NOTE: you can add multiple IP addresses for one ethernet card by adding one more file for one more IP address ifcfg-eth0:2 ifcfgeth0:3 and so on.]
[eth0 is the alias for First Ethernet Card eth1 for Second Ethernet Card and
so on if any]

You can also give the Range of IP address for example the ifcfg-eth0-range0 file with the following contents would bind the IP address 192.168.0.10 through 192.168.0.85 to the eth0 network card.
IPADDR_START=192.168.0.10
IPADDR_END=192.168.0.85
CLONENUM_START=0

(Please correct me if I am going wrong)