Router

Router
Overview

A router is a networking device that forwards data packets between computer networks. It operates at Layer 3 (Network Layer) of the OSI model.

Key Functions
  • Connects different networks and forwards data packets between them based on IP addresses
  • Determines the best path for data to travel using routing protocols
  • Acts as a traffic director for packets traveling across networks
  • Provides a barrier between networks, enhancing security
OSI Model Layer

Routers primarily operate at Layer 3 (Network Layer) of the OSI model. They use IP addresses to make forwarding decisions.