I am using the linux bonding, and on my new Centos-4 box I noticed that the ifconfig is slightly different. Now the slave interfaces report that they have an ip address, but the same config files in CentOS 3.5 showed that the slave interfaces were up, but not assigned an interface. Boinding is working, but I am just puzzled to see the address assigned i.e [root at proj proj]# ifconfig bond0 Link encap:Ethernet HWaddr 00:E0:81:2F:D4:48 inet addr:192.168.0.18 Bcast:192.168.0.255 Mask:255.255.255.0 UP BROADCAST RUNNING MASTER MULTICAST MTU:1500 Metric:1 RX packets:6213602 errors:0 dropped:0 overruns:0 frame:0 TX packets:3210436 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:8895154151 (8.2 GiB) TX bytes:249407197 (237.8 MiB) eth0 Link encap:Ethernet HWaddr 00:E0:81:2F:D4:48 inet addr:192.168.0.18 Bcast:192.168.0.255 Mask:255.255.255.0 UP BROADCAST RUNNING SLAVE MULTICAST MTU:1500 Metric:1 RX packets:6076938 errors:0 dropped:0 overruns:0 frame:0 TX packets:1602894 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:8711287076 (8.1 GiB) TX bytes:124498033 (118.7 MiB) Interrupt:185 eth1 Link encap:Ethernet HWaddr 00:E0:81:2F:D4:48 inet addr:192.168.0.18 Bcast:192.168.0.255 Mask:255.255.255.0 UP BROADCAST RUNNING SLAVE MULTICAST MTU:1500 Metric:1 RX packets:136664 errors:0 dropped:0 overruns:0 frame:0 TX packets:1607542 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:183867075 (175.3 MiB) TX bytes:124909164 (119.1 MiB) Interrupt:193 --