A router and an access point (AP) serve different roles in a network, and there are several functionalities that a router typically has that an access point does not. Here are some key added functionalities of a router:
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Routing: A router directs data packets between different networks based on IP addresses. It connects multiple devices and enables communication between different networks (e.g., your local home network and the internet).
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Network Address Translation (NAT): Routers use NAT to allow multiple devices on a local network to share a single public IP address. This is important for conserving IP addresses and enhancing security.
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DHCP Server: Routers can act as a Dynamic Host Configuration Protocol (DHCP) server, automatically assigning IP addresses to devices on the network, which helps manage IP address allocation efficiently.
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Firewall Functionality: Most routers include built-in firewall features that help protect the network by blocking unauthorized access and filtering traffic.
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WAN Connectivity: Routers typically have a WAN (Wide Area Network) port for connecting to the internet through a modem, allowing access to external networks.
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Quality of Service (QoS): Many routers feature QoS settings that prioritize certain types of traffic (like video streaming or gaming) to ensure better performance based on the type of data being transmitted.
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VPN Support: Routers can provide Virtual Private Network (VPN) functionality, allowing secure remote access to the network and data encryption for connections over the internet.
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Advanced Security Features: Routers may include various security features, such as WPA3 encryption, guest network capabilities, and intrusion detection/prevention systems.
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Traffic Management and Monitoring: Routers often come with user interfaces for monitoring network traffic, managing bandwidth, and configuring parental controls or content filtering.
In contrast, an access point primarily serves to extend a wireless network, allowing devices to connect wirelessly to the network but does not manage traffic or routes data between different networks. It relies on a router for those functionalities.