I think the OP has a decent handle on how VLANs are configured.
What he was getting at (as far as i could tell) is that there is a section in the system admin -> network section that allows you to create a VLAN. The “help” bubble for it gives an example of eth0:1 or etho0:2. In his experience (and mine too) he has only seen vlans created with a period (.) not a colon (
so he is asking if correct syntax is in fact eth0:1 or if it should be eth0.1
What i was explaining was that even though you set everything in the gui right, you still need to go into the cli to add the vlan=yes line to the new config file.
One would think that when the gui says create virtual interface it would do this for you.
Mark.