Cisco Routers Configuration registers Value

Cisco Routers Configuration registers Value

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• The configuration register is a 16 bit (2 Byte) value
• The value range is from 0x0 to 0xFFFF.
• 0x2102 is the factory-default configuration register value.
• 0x2142 boots from flash without using NVRAM contents good for password recovery.
• 0x2101 boots from boot prom image not flash, good for upgrading image on flash.
• 0x2141 boots from boot prom and ignores NVRAM contents.
• 0x141, which disables the Break key, ignores the NVRAM configuration, and
  boots the default system image from ROM.

 

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