Learn how an Access Point connects to the internet within a structured network, enabling wireless devices to access LAN and WAN resources seamlessly.
In modern enterprise or campus networks, providing seamless wireless internet access is essential. The image you shared depicts a simplified yet practical network layout that includes Access Points (APs), Switches, Servers, and User Systems. Let’s break down how this setup works and how APs play a critical role in connecting wireless clients to the internet.
1. Access Point: The Wireless Bridge
Access Points are devices that bridge the gap between wireless clients (like laptops, phones, tablets) and the wired network. They convert wireless signals into Ethernet frames and forward them into the network infrastructure.
In the diagram:
Multiple APs are shown, placed near user systems.
These APs are likely connected via Ethernet cables to a central network switch.
2. The Role of the Switch
Switches serve as the central hub that connects all wired devices—including APs, servers, and systems—within the Local Area Network (LAN).
When a wireless device connects to an AP:
Data travels through the AP into the switch.
The switch forwards the traffic toward its appropriate destination—either internal (intranet) like a server, or external (internet) via a router or firewall.
3. Server Teams and Internal Systems
The image shows two server teams:
Team 1: Likely responsible for hosting critical applications or authentication systems (like Active Directory or DHCP).
Team 2: May handle monitoring, updates, or backups.
These servers are accessed by both wired and wireless clients for internal services—this is the intranet.
4. Internet Connectivity
To reach the internet:
Data from the AP travels through the switch and reaches the network gateway (not shown, but assumed to be a router or firewall).
This gateway handles NAT (Network Address Translation) and routes traffic to and from the internet.
The AP itself doesn't "connect to the internet" directly. Instead:
It extends network access wirelessly to clients.
All internet-bound traffic still routes through the LAN infrastructure.
5. Security and Access Control
For security:
Firewalls may be deployed between the switch and the router.
APs often support features like WPA3 encryption, MAC filtering, or even VLAN tagging to segment wireless traffic (for example, guest vs internal staff).
Conclusion
This setup shows how Access Points integrate into a broader wired network, acting as essential nodes for wireless access. The AP doesn’t provide internet on its own—it’s the bridge that allows wireless devices to join the structured LAN, which in turn handles routing, switching, and internet access through centralized components.
Contact D-Tech Trading:
Address: Mahalaxmisthan, Lalitpur, Nepal
Website: www.dtechtrading.com.np
Email: info@dtechtrading.com
Phone: +977 9851248419