VLAN question

[Dpgamer]

If I had a 24 port Layer 2 switch, and I setup a VLAN on hypothetically ports 1-6, could I then use that as kind of a mini-switch for the DMZ on my smoothwall box? Then would it be seperated from my main network.

PS: If it makes a difference I'm planning this on a ASUS GigaX1024P switch.

[TempliNocturnus]

That's exactly what a VLAN is. It turns your single switch, into multiple autonomous switches in a single box.

[Linux_Box]

As stated, that's what VLANs do (one of them anyway). To get the traffic from the VLAN on the first 6 ports to talk to the others, you need a router. Without the router, the traffic can't pass.

You can use the firewall as a 'router' to get between VLANs with security ACLs.