[VLAN] Multi-vlan on linux

[Roy-Magne Mo]

fr den 28.04.2006 klokka 17:18 (-0300) skreiv Lucas Diaz:
> This is my scenario:
> I've got a server, and clients with different vlans. They don't see each 
> other, but must see the server. If my server were a Windows, I just put 
> it on vlan 0 and it see every client vlan and they see the server also. 
> The thing is that the server is linux, and adding vlan interfaces (I 
> also use several IP ranges), is complicated to mantain, and I don't know 
> how efficient is having multiples virtual interfaces (let say 1000).
> That's why I want to create a "multi-vlan interface".

This is a feature that has to be handled by the switch. What you are
looking for is something named "Private VLAN"/Provider VLAN and so on.
These features have different names on different platforms. What it does
is; forward the packets from at a port to a designated egress port,
where your linux router is. If you wan't the server to be able to
communicate with each other, you will have to provide arp resolution or
arp proxying and forward the traffic yourself. 

This could possibly be achieved with EBtables, but I haven't tried
that. 
 
-- 
Roy-Magne Mo <rmo at sunnmore.net>