Configuring alias of a bonding interfaces is no different that configuring it for the normal interfaces like ethX. here is a short note on configuring alias of bonding interface. For the example setup, we have the bonding interface as bond0 as shown below :
# ip address show bond0 14: bond0: [BROADCAST,MULTICAST,MASTER,UP,LOWER_UP] mtu 1500 qdisc noqueue state UP qlen 1000 link/ether 00:11:0a:6a:55:48 brd ff:ff:ff:ff:ff:ff inet 10.129.122.21/24 brd 10.129.122.0 scope global bond0 valid_lft forever preferred_lft forever inet6 fe80::211:aff:fe6a:5548/64 scope link valid_lft forever preferred_lft forever
We will be configuring bond0:1 alias of the bonding interface.
Creating alias of bond interface bond0
1. Create a file named ifcfg-bond0:1 in /etc/sysconfig/network-scripts directory.
# touch /etc/sysconfig/network-scripts/ifcfg-bond0:1
2. Add below parameters into the configuration file of bonding alias – /etc/sysconfig/network-scripts/ifcfg-bond0:1.
# vi /etc/sysconfig/network-scripts/ifcfg-bond0:1 DEVICE=bond0:1 BOOTPROTO=none IPADDR=10.129.122.22 NETMASK=255.255.255.0 USERCTL=no TYPE=Ethernet ONPARENT=yes
Change the parameter values IPADDR, NETMASK etc as per requirement.
3. Once all this configuration is done , restart the network service:
# service network restart
If you have other networks running and do not want to disrupt their service, you can try bringing up the particular virtual interfaces configured on bond only.
# ifup bond0:1
Once you have restarted the network services or brought up the virtual interface manually, you can verify the configuration using below commands.
# ip address show # ip link