Configuration Register
0x
Configuration Options
Bit-by-bit
Bit
Option
15
Ignore NVRAM config and enable diagnostics
14
IP broadcasts do not have network numbers
13
If network boot fails, boot from Flash
12
Console speed
11
Console speed
10
IP broadcast with all 0s
9
Use secondary bootstrap
8
Disable break key after IOS loads
7
OEM bit
6
Ignore NVRAM contents
5
Console speed
4
Fast Boot (RP 7000s)
3
Boot option
2
Boot option
1
Boot option
0
Boot option
Multi-bit
Bits
Selection
Option
5, 11, 12
1200 bps
2400 bps
4800 bps
9600 bps (default)
19200 bps
38400 bps
57600 bps
115200 bps
Console Speed
0, 1, 2, 3
Other
Flash (1st Image)
ROM
Bootstrap Prompt
Boot Selection
Resources:
Cisco's Configuration Register Page
Copyright © 2001-2007 Brady Alleman. All Rights Reserved.