Using a cable/dsl router to share your Internet connection simplifies security. As shown below, the LAN is separated from the WAN (internet) by the router which acts as a firewall. The example below shows a router that does not have an ethernet hub/switch built in. If you purchase a router without enough ports for all your computers, an extra hub or switch can be connected easily. Just run a standard ethernet cable from your hub/switch UPLINK port to your routers LAN port. |