VLAN without an alias?

[nodata]

> So, I don't know how to assign/process traffic for a specific VLAN
> without using subinterfaces (that is, using vconfig). Why do you want
> to assign VLAN traffic to a physical interface instead of using
> subinterfaces?

Whoa careful, the "why" question will turn into the "why don't you.."
question soon :)

If all traffic needs to be tagged with a given vlan id, then it should be
possible for all traffic using eth0 to be tagged with that vlan id.

RHEL can do this btw. The network-scripts support it. I wondered how to do
this in Ubuntu LTS.