Edimax Technology CV-7438nDM - Manual (Page 84)

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TCP performs proper error detection and error recovery, and thus is reliable.
UDP on the other hand is not reliable. They both run on top of the IP (Internet
Protocol), a network layer protocol.
WAN: Wide Area Network. A network that connects computers located in
geographically separate areas (e.g. different buildings, cities, countries). The
Internet is a wide area network.
Web-based management Graphical User Interface (GUI): Many devices
support a graphical user interface that is based on the web browser. This
means the user can use the familiar Netscape or Microsoft Internet Explorer
to Control/configure or monitor the device being managed.