One thing that you’ll definitely need to be familiar with when attempting to configure a Cisco router is the different configuration modes available. We’ve already discussed the basic idea behind user mode and privileged mode. However, when it comes down to actually configuring almost all settings, you will need to be in what is known as global configuration mode. From this mode, you will also be able to access the configuration of individual interfaces, and eventually routing protocols as well. In this section we’ll take a look at accessing the different configuration levels and some associated commands.