A router may be a networking device that forwards data packets between computer networks. Routers perform the traffic directing functions on the web . Data sent through the web , like an internet page or email, is within the sort of data packets. A packet is usually forwarded from one router to a different router through the networks that constitute an internetwork (e.g. the Internet) until it reaches its destination node.
A router is connected to 2 or more data lines from different IP networks. When a knowledge packet comes in on one among the lines, the router reads the network address information within the packet header to work out the last word destination. Then, using information in its routing table or routing policy, it directs the packet to subsequent network on its journey.