OK. I should know this, but having not worked with integrated service routers before I need to double-check...... Can a 2801 ordered with 2 x Four port 10/100 Ethernet switch interface cards (HWIC-4ESW) be configured with 4 VLANs and route between them?.....the specifics are VLAN-1 w/2 devices attached, VLAN-2 w/1 device attached, VLAN3 w/3 devices attached and VLAN4 w/2 devices attached?.... This would be a much cleaner config then Switch..(tunked to)..router...(truned to)....switch. It seems like the integrated services router could do all that trunking and routing between VLANs internally. But just have never set this up in an integrated services router before so need to be really sure before ordering like 6 of these for this...Visio diagram attached detailing the logical (internal assumption of how the 2801 would work) as well.
Yes you can create 4 different vlans and use each interface for a given vlan or you can trunk down all these links , the cards are really like a standalone switch with routing capability.