In regard to computers, a router is a device issues information from one computer network to another. There are routers that can be wireless. Each router takes a different route to a different computer’s network. In order for the computer to send the information to another computer’s network, there must be a destination address.
The IPv4 is also known as the Internet Protocol version 4 which is one of the networking methods. It was first created and used in 1983 which seems like a long time ago for this to be taking place.
The A level 1 ultimate route is the route that a router would use to forward an IPv4 packet after examining its routing table for the best match with the destination address.