I have the following network set up: ifcfg-eth0: # Intel Corporation 82545GM Gigabit Ethernet Controller DEVICE=eth0 HWADDR=00:14:22:4b:62:95 ONBOOT=yes SEARCH="chygwyn.com" PROTO=static MTU=9000 IPADDR=10.44.1.1 NETMASK=255.255.255.0 ifcfg-eth0.5: DEVICE=eth0.5 ONBOOT=yes VLAN=yes BOOTPROTO=dhcp MTU=1500 PEERDNS=no ifcfg-eth0.6: DEVICE=eth0.6 ONBOOT=yes VLAN=yes BOOTPROTO=static IPADDR=10.100.100.254 NETMASK=255.255.255.0 MTU=1500 This works perfectly ok provided I don't enable NetworkManager. If I do then I discover that the config for eth0.6 has also been written to eth0 for some strange reason. I think it would be a good plan to disable NetworkManager by default until it can actually cope with real network configurations. I've installed a number of boxes with recent versions of Fedora and the only thing they all have in common is that none of them would work until I turned NetworkManager off.
This bug appears to have been reported against 'rawhide' during the Fedora 12 development cycle. Changing version to '12'. More information and reason for this action is here: http://fedoraproject.org/wiki/BugZappers/HouseKeeping
Moving to Rawhide.
This is fixed in F17.
*** Bug 750011 has been marked as a duplicate of this bug. ***