A router is a type of device used in networking to forward data packets between different LANs. On the Internet, a router is responsible for redirecting, routing, the traffic.
A data packet will be forwarded from router to router through the necessary networks ( LANs or the Internet) until it arrives at its destination host.
A router has multiple interfaces. When a data packet comes in one of its interfaces, the router looks at the destination address information stored in the packet header to determine the final network.
The forward decisions for any data packet are made according to the routing table or routing policy that is configured manually or dynamically on every router.
IP routers are used in every home or small office, with the purpose of connecting the users to the Internet by forwarding the packet from the computers to the large network of the ISP.
An example of a router would be the owner’s cable or DSL router, which connects to the Internet through an Internet service provider (ISP).
Enterprise routers are more expensive and sophisticated. Their main objective is to connect large corporations or ISP networks with the core routers of the Internet backbone.
Quick tips and solutions for your router
- Linksys router’s lights are flashing? Try these solutions
- Router will not forward ports? Try these easy solutions
- How to update your router’s firmware in a few simple steps
- Does VPN affect routers? What’s the best router VPN?
If you want to learn and discover more guides about network devices, don’t hesitate to check out our Router’s section as well.