[root@localhost ~]# cat /etc/modprobe.conf alias bond0 bonding options bond0 miimon=100 mode=1 primary=eth0 [root@localhost network-scripts]# cat /etc/sysconfig/network-scripts/ifcfg-bond0 DEVICE=bond0 IPADDR=192.168.20.121 NETMASK=255.255.255.0 NETWORK=192.168.20.0 BROADCAST=192.168.20.255 GATEWAY=192.168.20.1 ONBOOT=yes BOOTPROTO=none USERCTL=no [root@localhost network-scripts]# cat /etc/sysconfig/network-scripts/ifcfg-eth0 DEVICE=eth0 MASTER=bond0 SLAVE=yes USERCTL=no ONBOOT=yes BOOTPROTO=none [root@localhost network-scripts]# cat /etc/sysconfig/network-scripts/ifcfg-eth1 DEVICE=eth1 MASTER=bond0 SLAVE=yes USERCTL=no ONBOOT=yes BOOTPROTO=none