When setting up a network, two common devices you will hear about are routers and switches. They may look similar at first, but they have very different roles. Understanding the difference is important for beginners in networking.
What Is a Router?
A router connects different networks together.
The most common example is your home router. It connects:
your local network (LAN) → your devices (PC, phone, TV)
to the Internet (WAN) → your ISP
The router decides where data should go between networks. It also often provides:
NAT (Network Address Translation)
DHCP (automatic IP assignment)
Firewall protection
Wi-Fi (in many home routers)
A router connects your network to other networks (like the Internet).
What Is a Switch?
A switch connects devices within the same network.
For example, in a home or office network, a switch connects:
PCs
servers
printers
access points
A switch works at the local level and helps devices communicate with each other efficiently. It uses MAC addresses…login to view the rest of this post