I am trying to create an alias IP address on an existing ethernet interface using the following procedure below. However it does not work, it does not create the alias eth0:1 interface. I've tried many times, various combinations and configurations without success. Any ideas?? BTW this procedure was given to me by Redhat.
Thanks.
- The following procedure uses eth0 as an example for assigning a second TCP/IP address:
- Verify that your /etc/sysconfig/network-scripts/ifcfg-eth0 file does not have a GATEWAY= parameter in it. If it does, remove it and add that parameter to /etc/sysconfig/network.
- The alias interface configuration files has naming style of "ifcfg-<if-name>:<alias-name>".
- Copy your /etc/sysconfig/network-scripts/ifcfg-eth0 file to a new file called: /etc/sysconfig/network-scripts/ifcfg-eth0:1
- Modify /etc/sysconfig/network-scripts/ifcfg-eth0:1
- change DEVICE=eth0 to DEVICE=eth0:1
- modify IPADDR= to specify the additional tcp/ip address you wish to use.
- the ONBOOT option not valid for alias devices; please use ONPARENT in alias if you want to bring up the device when the parent device is brought.
Here is an example for ifcfg-eth0:1
# cat ifcfg-eth0:1 DEVICE=eth0:1 ONPARENT=yes BOOTPROTO=static IPADDR=192.168.200.2 NETMASK=255.255.255.0Start the secondary interface:
# ifup eth0:1or
# service network restart