4.1. Routing Fundamentals
To begin, you need to understand the routing function itself and what happens during the process. In this section, I show you how a router makes its decisions about where and how to send data. You'll learn about the information that a router needs in order to make these decisions. Then you'll delve into the ways that the router gets this information—both static routing (you, as the administrator, will give this to the router) and dynamic routing. You will look at administrative distance and some of the functions that help a router determine which routing information is the best. You will see how dynamic routing protocols are categorized and the features each provides.
4.1.1. Basic Routing
At this point we have discussed ...