What is an Ethernet Hub/Switch and why is a router required when using this type of set up?
An Ethernet hub or switch creates a virtual network between multiple devices for the purpose of transferring data between those devices. In order to access the internet, the Ethernet hub or switch needs to be connected to a router, which is then connected to a modem. The modem provides a broadband connection and the router provides a gateway for the networked devices to access the internet.