Say you have Internet > router (DHCP/NAT) > switch1 > switch2 > computers
(switch1 also has computers connected to it)
What steps need to be taken to put a router between the 2 switches so the computers on each switch are on their own LAN and invisible to each other?
Also, would enabling a VLAN on switch2 be a good alternative to adding a router (assuming that adding a router, for whatever reason, [cost, space, etc.] was not possible)?