What information does a router need to know when looking for a route?

All routers need the following information to find routes for packets:

Destination Address: the target host for sending packets.

Determine the neighboring station: specify who is directly connected to the router interface.

Discovery of routes: Discover the networks that the neighboring sites know.

Select a route: Provides the Optimal Path to the destination based on the information learned from the neighboring station.

Keep route info: the router saves a route table, which stores all the route information it knows.