What is configuration register 0x2102?
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.
What is configuration register is 0x142?
The 4 in 0x142 tells the device to ignore the startup config at boot time. This is why it has not seemed to retain the startup config. I suggest that you go ahead and reload. If the config register is then set to 0x102 then the startup config should work as expected.
What is configuration register in Cisco switch?
Cisco IOS routers and switches use a configuration register for some specific settings. These are settings that are not stored in the startup or running configuration. There are 16 bits (4 hexadecimal digits) reserved for the configuration register.
What is Rommon?
The ROM Monitor (ROMMON) is a bootstrap program that initializes the hardware and boots the Cisco IOS XE software when you power on or reload a router. If your router does not find a valid system image to load when it is booting, the system enters the ROMMON mode.
What does Confreg 0x2142 do?
Config Register 0x2142 To bypass NVRAM configuration, in other words, to bypass start-up configurataion, we can change Config Register value.
What is Rommon mode in Cisco router?
What is the purpose of the configuration register?
Configuration Register is a special 16 bits value that can be configured in Cisco routers. It is mainly used in three cases; To determine how the router boots. To determine boot options.
What is domain CI?
ci is the Internet country code top-level domain (ccTLD) for Côte d’Ivoire.
What is a CI attribute?
Every CI type has attributes which define it, such as name, description, and default value. The CITs grouped under other CITs in the CI Type tree inherit attributes from the higher-level CITs. When you define a new CI type, you first select a Base Configuration Item Type from a list of existing CITs.
How do I get into ROMmon?
To manually boot into the ROMmon mode, you will need to reboot the device and break the boot sequence. Pressing the Ctrl+Break key combination during boot usually does this.