networking

[Pol Hallen]

Hi all, I'm helping a friend to create a small network on his office (4 
floors)

I suggests him to separate each networks:
floor1 - 192.168.1.0/24
floor2 - 192.168.2.0/24
floor3 - 192.168.3.0/24
floor4 - 192.168.4.0/24

DSL <--> SERVER <--> WAN - 192.168.10.0/24
                     NIC1 - 192.168.1.0/24 <--> switch
                     NIC2 - 192.168.2.0/24 <--> switch
                     NIC3 - 192.168.3.0/24 <--> switch
                     NIC4 - 192.168.4.0/24 <--> switch

what is better? A linux server with 5 NICS (for all floors) or a 
dedicated and cheapest router with 5 NICS? (DSL <--> SERVER <--> ROUTER)

any suggests is useful :-)

thanks for help!

Pol