Cisco 12406 - Manual (Page 3)

4-3
Cisco 12006 and Cisco 12406 Router Installation and Configuration Guide
OL-11497-03
Chapter 4 Troubleshooting the Installation
Performing Other Configuration Tasks
Table 4-2 specifies the content of the boot field, which defines a source for
booting the default Cisco IOS software image required to run the router. The
content of the boot field is specified as a binary number.
07 0x0080 Enables the OEM
2
bit
08 0x0100 Disables the Break function
09 0x0200 Uses a secondary bootstrap
10 0x0400 Broadcasts Internet Protocol (IP) with all zeros
11 and 12 0x0800 to
0x1000 Defines the console baud rate (the default setting
is 9600 bps)
13 0x2000 Boots the default Flash memory software if the
network boot fails
14 0x4000 Excludes network numbers from IP broadcasts
15 0x8000 Enables diagnostic messages and ignores the
contents of NVRAM
1. The factory default value for the software configuration register is 0x0102. This value is a
combination of binary bit 8 = 0x0100 and binary bits 00 through 03 = 0x0002.
2. OEM = original equipment manufacturer.
Table 4-1 Software Configuration Register Bit Meanings (continued)
Bit Number
1
Hexadecimal
Value
Definition/Function
Table 4-2 Boot Field and Meanings
Boot Field Definition
00 On power up, the system remains at the ROM monitor prompt
(
rommon> ) awaiting a user command to boot the system manually.
01 On power up, the system automatically boots the first system image
found in the onboard Flash memory SIMM on the RP.