Add another IP address to a Bonding Interface

Question

I have a Linux network Bonding interface for two Ethernet interfaces (eth0 and eth1)

$ cat /etc/sysconfig/network-scripts/ifcfg-bond0   
DEVICE=bond0  
BOOTPROTO=static  
ONBOOT=yes  
IPADDR=XX.XX.XX.XX  
NETMASK=255.255.255.0  
GATEWAY=XX.XX.XX.XXX  

How i can add another IPADDR to this bonding Interface ?

Solution

What you want is called an Interface Alias.

Based on the files you mention, I think you're on Fedora, Red Hat or similar.

Their Interface Configuration Files Reference Guide suggest you want a new file called /etc/sysconfig/network-scripts/ifcfg-bond0:0 containing

DEVICE=bond0:0
IPADDR=XX.XX.XX.YY

I assume you also need the other entries, e.g.

BOOTPROTO=static
ONBOOT=yes
NETMASK=255.255.255.0
GATEWAY=XX.XX.XX.XXX

Comments

[WAEL]

Thank Mikel for your help i am using Ret Hat shall i add only these two lines you mentioned in the new file ???

[Mikel]

I'm guessing you also want to specify NETMASK and GATEWAY. And the docs say DHCP is not supported, so you may need BOOTPROTO too.

[WAEL]

Do i need to restart anything after creating this file ?

[Mikel]

I'd try ifup bond0:0 first. If that doesn't work, try /etc/init.d/network restart.

[Mikel]

Welcome! Please try it and let us know if it works.

[WAEL]

Thanks Mikel its working great, that is exactly what i want thanks for your help