base station: Another word for the first router that handles your packets as they are forwarded to the Internet.
broadcast: Sending a packet in a way that all the stations connected to a local area network will receive the packet.
gateway: A router that connects a local area network to a wider area network such as the Internet. Computers that want to send data outside the local network must send their packets to the gateway for forwarding.
MAC Address: An address that is assigned to a piece of network hardware when the device is manufactured.
token: A technique to allow many computers to share the same physical media without collisions. Each computer must wait until it has received the token before it can send data.