What Is an Access Point (AP)?
an Access Point (AP) — a device that lets wireless devices connect to a wired network — the bridge between Wi-Fi clients and the Ethernet LAN behind them.
How it works
An access point broadcasts one or more Wi-Fi networks (SSIDs) and bridges wireless client traffic onto the wired network. In homes it's often built into the router; in businesses, multiple standalone APs provide coverage, frequently managed centrally by a wireless LAN controller (WLC). APs handle the radio side while the wired network handles the rest.
Why it matters
Access points are how the majority of devices actually join networks today, making them central to modern network design — coverage planning, channel selection and centralized management are real skills. See wireless LAN fundamentals.
Frequently asked questions
What is an access point?
A device that bridges wireless (Wi-Fi) devices onto a wired network, broadcasting the Wi-Fi network and forwarding client traffic to the LAN.
What is the difference between a router and an access point?
A router connects networks and routes traffic (Layer 3); an access point purely provides wireless access to an existing network. Home routers often combine both functions.
What is a wireless LAN controller?
A device that centrally manages multiple access points — configuration, RF, security and roaming — common in business deployments.
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