How to get 2 secured networks with 1 modem and router

[stickerhed]

We have 2 businesses that need to have 2 separate secured networks using 1 internet connection. We dont' want either network to have access to the other one. Is this possible? Can we use the same router or do we need 2? Any help would be greatly appreciated.

 

[esco_sid]

You could get a professional cisco router if you know how to configure it and put 2 networks on 2 different vlans.

 

[bill001g]

Option 1 if you have some tech skills is to load third party firmware on a compatible router and define 2 different networks.

Option 2 Buy 3 routers. Main internet router and then connect a router for each business behind it. The NAT will prevent incoming session between the routers.