I'm looking for a router / switch that will allow me to share a single external internet connection between two completely separate networks, which want to be totally isolated from each other.
IE one internet connection modem connected to the 800 WAN socket, a switch connected to the LAN port 1 with a bunch of machines on, and another switch connected to LAN port 2 with another bunch of machines on.
I want all machines to be able to see out to the internet (and ideally set up some port forwarding back in), but I don't want the two groups of machines to be able to see each other at all.
There will be a DHCP server running on each group, and I want no leakage between them at all.
I think from what I've read that a Cisco series 800 router should support this using VLANS (internet on vlan 0, machines on vlans 1 and 2, and routes between 1>0 and 2>0)
However, before I go and actually buy one I was wondering if anyone with some real Cisco experience could confirm if this will work in reality.
Specifically considering either an 851 or 871, unless someone can suggest something more effective.
Thanks in advance.