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 config register 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.
How do I find my config register?
To view the current setting of the configuration register, establish a console or Telnet session with the router. Issue the show version command, and input the contents into the Output Interpreter.
What is configuration register Cisco?
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 Confreg in a Cisco router?
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 configuration register 0xF?
Config-Register is basically a hexadecimal or decimal value that represents. the 16-bit configuration register value that will be used the next time the switch is. restarted. The value range is from 0x0 to 0xFFFF (0 to 65535 in decimal).
What is 0x2142 config register?
The default value of Config Register is 0x2102. With Configuration Register 0x2102 value, the router boots from NVRAM and the normal router precedures works. The configuration stored in NVRAM is the startup configuration. So, if we need to bypass this configuration, we can change the default value.
What is Cisco bootstrap?
The initial software that runs on a Cisco router is called the bootstrap software and is usually stored in ROM. The bootstrap software is invoked when the router boots up. Flash—Flash memory is located on a processor board SIMM but can be expanded using PCMCIA (removable) cards.
What is the role 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 is configuration register 0x2102 in Cisco router?
Configuration Register 0x2102 The default value of Config Register is 0x2102. With Configuration Register 0x2102 value, the router boots from NVRAM and the normal router precedures works. The configuration stored in NVRAM is the startup configuration.
What is the NVRAM configuration register 0x2102 value?
With Configuration Register 0x2102 value, the router boots from NVRAM and the normal router precedures works. The configuration stored in NVRAM is the startup configuration.
What is the default configuration register value for a Cisco router?
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. Configuration Register Values and their Meaning
Do I need to worry about 0x2102?
You do not need to worry about 0x2102. HTH Rick HTH Rick 9 Helpful Reply Reza Sharifi Hall of Fame Expert In response to Vishal Kolamkar Mark as New