(also wide area network mini port, WAN miniport)
A WAN mini port is a software driver for Windows XP (and later versions) that allows devices to connect to wide area networks (WANs). Crucially, WAN mini ports allow connections to the internet without using a router as an intermediary — for example, by plugging the ethernet cable directly into your computer.
WAN mini ports are typically installed automatically when a computer is connected to a WAN, such as through a DSL or cable modem. WAN mini ports are also automatically installed when you connect to a virtual private network (VPN). Each WAN mini port can be configured separately using the Windows Device Manager.
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