9.2. The IP Routing Process
The IP routing process is actually pretty simple, and it doesn't change, regardless of the size of your network. I'm going to use Figure 9.2 to give you a picture of this step-by-step process. The question I'm asking is: What happens when Host_A wants to communicate with Host_B on a different network? I'll go through how to answer that question by breaking down the process with headings to make it easier to understand. First, check out Figure 9.2.
Figure 9.2. IP routing example using two hosts and one router
Okay—here you can see that a user on Host_A pings Host_B's IP address. Routing doesn't get any simpler than ...