chapter 6 ccna 4

chapter 6 ccna 4.In this example, note that the subinterface numbers (I and 2) in the command interface are different from the VLAN numbers (10 and 20) in the command encapsulation(10 and 20) are different. As mentioned earlier, the subinterface number is used by IOS only to indicate the subinterface and does not have to be the same as the one used in any configuration of the subinterfacenumbering is the same.When configuring static routes, to route traffic out of a specific subinterface, you can specify both the primary and subinterface numbers, such asfastethemet0/0.2o Static routing is discussed in Chapter 18.Exam Requirements.Hardware Components of a RouterBe sure to familiarize yourself with the various hardware components of a router, their purpose, and their impact on the startup process.Chapter 15 Router Initial Configuration 381Router Startup Process Be sure to familiarize yourself with how the router boots up and looks for the IOS and configuration files. Understand the purpose of the configuration registers, especially the difference between 0x2102 and 0x2142. Understand the meaning of the last hexadecimal bit of the configuration register value and how it affects the router boot process. Understand the purpose of boot system commands and the problems that will result from misconfiguring them. To view these settings, use the command show versiono Don't forget that if the router does not find a configuration file in NVRAM when it boots, it will automatically open the system configuration dialog. Be sure to familiarize yourself with how to perform the password recovery process in R0MM0N mode.