tagging packets

Hi,

I am using a 2.4.21-4 kernel so it has 8021q compiled in as a module. My
purpose of using vlan is to tag packets with a specific vlan id, which are
destined for particular vlans, 2258 and 20 (both set up on the switch), from
the interface level; here being eth0:0 to go to vlan 20 and eth0:1 destined
for vlan 2258. Is there a way to do this with vconfig? I don't see options
for doing this in the docs. 

Also when I followed the instructions on creating a vlan at
http://scry.wanfear.com/~greear/vlan/howto.html the command:

vconfig add eth0 2


creates an interface/vlan called eth0.2 and not vlan002. (I just want to ask
if this is expected behavior). 

Cheers,

Patrice Seyed
Linux System Administrator - LinGA
RHCE, SCSA
Boston University Medical Campus