On Fri, 20 Jan 2006, ABOKHALAF, Nassri Abdellatif wrote: > Ethernet Channel Bonding Driver: v2.6.1 (October 29, 2004) > > Bonding Mode: fault-tolerance (active-backup) > Primary Slave: None > Currently Active Slave: eth0 > MII Status: up > MII Polling Interval (ms): 100 > Up Delay (ms): 0 > Down Delay (ms): 0 > > Slave Interface: eth0 > MII Status: up > Link Failure Count: 0 > Permanent HW addr: 00:15:60:ad:a0:8a > > Slave Interface: eth1 > MII Status: up > Link Failure Count: 0 > Permanent HW addr: 00:15:60:ad:a0:89 > >> show me your modprobe.conf > > > /etc/modprobe.conf > > alias vlan 8021q > alias bond0 bonding > options bonding miimon=100 mode=1 > alias eth0 tg3 > alias eth1 tg3 > alias scsi_hostadapter cciss > alias usb-controller ehci-hcd > alias usb-controller1 uhci-hcd > alias net-pf-10 off > > /etc/sysconfig/network > NETWORKING=yes > HOSTNAME=dns.refertelecom.pt > GATEWAY=10.192.32.254 > GATEWAYDEV=bond0.201 > > eth0 > DEVICE=eth0 > BOOTPROTO=static > TYPE=Ethernet > ONBOOT=yes > SLAVE=yes > MASTER=bond0 > > eth1 > DEVICE=eth1 > BOOTPROTO=static > TYPE=Ethernet > ONBOOT=yes > SLAVE=yes > MASTER=bond0 > > bond0.201 > DEVICE=bond0.201 > ONBOOT=yes > IPADDR=10.192.32.37 > NETMASK=255.255.255.0 > > bond0 > DEVICE=bond0 > ONBOOT=yes > Hmmm. All looks well. Are there any interesting messages in your messages logfile ? can you use the vconfig command to bring up the vlan ? ie. vconfig add bond0 201 ifconfig bond0.201 10.192.32.37 netmask 255.255.255.0 up also what is in /proc/net/vlan/