I need to share one ADSL connection between 3 seperate charities, A, B & C. Each charity has its own network of 2 or 3 computers and MUST be isolated from the other two charities except for a shared ADSL connection for internet and email access.
Would the following 4 router solution work ?
ADSL connection feeds into a Primary router with IP address 192.168.0.1
Charity A's router has IP address of 192.168.100.1 and all pcs are on the 192.168.100.x IP range. Router takes internet feed from Primary router
Charity B's router has IP address of 192.168.200.1 and all pcs are on the 192.168.200.x IP range. Router takes internet feed from Primary router
Charity C's router has IP address of 192.168.300.1 and all pcs are on the 192.168.300.x IP range. Router takes internet feed from Primary router
All 3 charities pick up internet connetion from Primary Router and can share files and printers internally but can NOT sahre files etc with other charities. Better still if Charity A couldn't even see Charity B or C on the network and so on.
ANy comments very much appreciated.
PS Can't use wireless due to high signal attenuation.