Network-related Terminology

An access point refers to a device that makes use of Internet connections wirelessly.

Some common examples include wireless LAN routers and Wi-Fi routers, which come with a function for sharing a single connection among multiple devices.

For Internet connections such as fiber-optic Internet and cable TV that are connected wirelessly, a wireless LAN router (or devices with a wireless LAN router function, such as a modem) is used.

While a wireless LAN router allows multiple devices to make use of a single Internet connection, it is possible for devices that are connected to the same wireless LAN router to communicate with one another.

Communication in this case is carried out independently of the Internet connection, and is referred to as a Local Area Network (LAN) connection.

The Internet connection that we are using either makes use of a global IP address or a local IP address.

A local IP address cannot be accessed from an external source, and thus cannot be used for Internet connections.

If you are unsure of the type of Internet connection that you are using, please consult your Internet service provider.

UPnP, which is the abbreviation of “Universal Plug and Play”, is a function of wireless LAN routers.

This function can be used to grant limited access from external sources, which is otherwise prohibited.

To find out whether the wireless LAN router in use supports UPnP, please refer to the instruction manual or product catalog of the wireless LAN router.

If the UPnP function of a Wi-Fi router can be enabled or disabled, select “Enable”.