Thanks to all, Finally with your help I have my test system with bonding configured. Here is my final configuration for anyone who need it: #more ifcfg-eth0 DEVICE=eth0 ONBOOT=yes USERCTL=no BOOTPROTO=none HWADDR=00:0C:29:9D:AE:60 TYPE=Ethernet IPV6INIT=no MASTER=bond0 SLAVE=yes USERCTL=no # more ifcfg-eth1 DEVICE=eth1 ONBOOT=yes USERCTL=no BOOTPROTO=none HWADDR=00:0C:29:9D:AE:6A TYPE=Ethernet IPV6INIT=no MASTER=bond0 SLAVE=yes USERCTL=no #more ifcfg-bond0 DEVICE=bond0 IPADDR=192.168.1.193 NETMASK=255.255.255.0 NETWORK=192.168.1.0 NETWORKING_IPV6=no GATEWAY=192.168.1.1 BROADCAST=192.168.1.255 USERCTL=no BOOTPROTO=none ONBOOT=yes TYPE=Ethernet #more route-bond0 GATEWAY0=192.168.1.1 NETMASK0=255.255.255.0 ADDRESS0=192.168.1.0 #more /etc/modprobe.conf alias eth0 pcnet32 alias scsi_hostadapter ata_piix alias eth1 pcnet32 alias bond0 bonding options bond0 mode=4 miimon=100 An finally the ifconfig: ifconfig bond0 Link encap:Ethernet HWaddr 00:0C:29:9D:AE:60 inet addr:192.168.1.193 Bcast:192.168.1.255 Mask:255.255.255.0 inet6 addr: fe80::20c:29ff:fe9d:ae60/64 Scope:Link UP BROADCAST RUNNING MASTER MULTICAST MTU:1500 Metric:1 RX packets:4475 errors:0 dropped:0 overruns:0 frame:0 TX packets:439 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:320224 (312.7 KiB) TX bytes:56916 (55.5 KiB) eth0 Link encap:Ethernet HWaddr 00:0C:29:9D:AE:60 UP BROADCAST RUNNING SLAVE MULTICAST MTU:1500 Metric:1 RX packets:2376 errors:0 dropped:0 overruns:0 frame:0 TX packets:432 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:168785 (164.8 KiB) TX bytes:56334 (55.0 KiB) Interrupt:169 Base address:0x1080 eth1 Link encap:Ethernet HWaddr 00:0C:29:9D:AE:60 UP BROADCAST RUNNING SLAVE MULTICAST MTU:1500 Metric:1 RX packets:2103 errors:0 dropped:0 overruns:0 frame:0 TX packets:16 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:151679 (148.1 KiB) TX bytes:1984 (1.9 KiB) Interrupt:177 Base address:0x1400 lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 inet6 addr: ::1/128 Scope:Host UP LOOPBACK RUNNING MTU:16436 Metric:1 RX packets:1440 errors:0 dropped:0 overruns:0 frame:0 TX packets:1440 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:5616724 (5.3 MiB) TX bytes:5616724 (5.3 MiB) With this configuration ALL works fine. Now Im going to test different configurations, Thanks again Greetings ESG -- redhat-list mailing list unsubscribe mailto:redhat-list-request@xxxxxxxxxx?subject=unsubscribe https://www.redhat.com/mailman/listinfo/redhat-list