ccna 200 301 volume 2

ccna 200 301 volume 2.New router (all flash external):Remove all flash cards. Shut down the router, then boot it up again. The router fails to load the IOS; so it goes to load theROMMON. (Once ROMMON is loaded, reinsert the flash memory.) In summary, the important idea behind password recovery is shown below. Step 1 Boot the ROMMON, either by interrupting the boot process from the console, or by removing all flash memory first. Step 2 Set the configuration registers to ignore the boot configuration file (e.g., confieg 0x2142). Step 3 Boot the router to load the IOS, which can now access privileged mode without a password.Special Password Reset ExampleExample 20-4 is an example of a password recovery/reset on the 2901 router. It starts with router R1 powered on, and then the user connects to the console. The 2901 router has compact flash slots as well as USB slots that support flash drives, so for this example, I can remove the flash and have the router boot into ROMMON mode. R1 powers up again to start booting. The steps in the example are as follows.Step 1 Turn off the router.Step 2 Carefully remove the compact flash memory from the router.Step 3 Start the router again.Step 4 Check the initialization message and wait for the ROMMON> prompt.Step 5 Once the router enters ROMMON mode and you see the ROMMON prompt, carefully insert the compact flash again.Step 6 Use the ROMMONconfreg0x2142 command to set the configuration register to 0x2142.