Creating a separate Ethernet network

I am creating a 'lab network' which is on a different range ( 10.10.1.X/24 ) , to do this I connected up Tomato ( Asus RT-N16 tomato 1.28 by shibby) to our main network , via the WAN , [Edit ]
I have since connected the main network to the lan and bridged it to BR0
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then I created a separate DHCP range then configured it to a VLAN and assigned to a single port on the router port ( LAN 2 )
This works perfectly for the Lab, however , is it possible to assign one or more of the...

Creating a separate Ethernet network