We had to configure this by hand under EL3. In /etc/modules.conf: alias eth0 tg3 alias eth1 tg3 alias bond0 bonding options bond0 miimon=100 mode=balance-alb updelay=1000 In /etc/sysconfig/network-scripts ifcfg-bond0: DEVICE=bond0 BOOTPROTO=none BROADCAST=10.102.255.255 IPADDR=10.102.0.82 NETMASK=255.255.0.0 NETWORK=10.102.0.0 GATEWAY=10.102.255.254 ONBOOT=yes USERCTL=no ifcfg-eth0: DEVICE=eth0 BOOTPROTO=none ONBOOT=yes MASTER=bond0 SLAVE=yes USERCTL=no ifcfg-eth1: DEVICE=eth1 BOOTPROTO=none ONBOOT=yes MASTER=bond0 SLAVE=yes USERCTL=no I *think* that was it. Obviously options and NIC names will vary. -Miles