What is config register 0x2142?

Configuration register is 0x2142. In this example, the configuration register shows 0x2142. The router bypasses the startup configuration stored in NVRAM during its boot sequence. This feature is normally used during a password recovery procedure.

What is 0x2102 config register?

The factory default setting for the configuration register is 0x2102. This indicates that the router should attempt to load a Cisco IOS Software image from Flash memory and load the startup configuration with a console speed of 9600 baud.

What is config register 0x142?

Symptom: When start-up configuration is ignored by setting ROMMON boot parameter (SWITCH_IGNORE_STARTUP_CFG) or start-up configuration is removed, the default config register value will be shown as 0x142 instead of 0x102.

How do I change the config register on a Cisco switch in Rommon mode?

There are two way to change Config Register on a router. This can be done both in Rommon mode and in configuration mode. In Rommon mode, it can be change with “confreg” command. Below, we are changing Configuration Register as 0x2142.

What is the purpose of the configuration register?

The Configuration Register. When a router starts up it needs to know which software to load and which configuration file to use. The way it determines these two things is by looking at its configuration register setting and its startup configuration in nonvolatile RAM (NVRAM).

What does 0x2142 do?

0x2142 tells the router to bypass the configuration in NVRAM so that you can perform password recovery.

What is the factory default setting for the configuration register on Cisco routers?

What is the factory default setting for the configuration register on Cisco routers? Explanation: The default configuration register setting on a Cisco router is 0x2102. This can be seen by executing the command router# show version.

What is the role of the configuration register?

How do I reset my Cisco 2900 router to factory settings?

Reset Router Using Reset Button Find the Reset button on the router. Press and hold the Reset button while you power on the router. Release the Reset button after 10 seconds. Wait 5 to 10 minutes for the router to finish booting.

What is the factory default value of the configuration register?

The factory default value for the software configuration register of a Cisco 7500 Series Router is 0x0101. This value is a combination of the following: binary bit 8 = 0x0100 and bits 00 through 03 = 0x0001.

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