Chapter 4 Troubleshooting the Installation
Problem-Solving with Subsystems
4-14
Cisco 12404 Internet Router Installation and Configuration Guide
OL-11636-01
Step 11
Enter the
show startup-config
command at the privileged EXEC mode prompt to
display the enable password in the configuration file.
Filo#
show startup-config
.
.
.
Step 12
Enter the
configure terminal
command at the privileged EXEC mode prompt to
enter global configuration mode:
Filo#
configure terminal
Enter configuration commands, one per line. End with CNTL/Z.
Filo(config)#
Step 13
Change the software configuration register value back to its original value (noted
earlier in Step 3). Alternatively, change this value to 0x0102 (the factory default)
by using the
config-register
0x
value
command:
Filo(config)#
config-register 0x
value
Filo(config)#
Value
is a hexadecimal number preceded by
0x
, as in the following example:
Filo(config)#
config-register 0x0102
Step 14
Enter
Ctrl-Z
to exit global configuration mode.
Filo(config)#
Ctrl-Z
Filo#
Step 15
Reboot the router and use the recovered password with the
enable
command to
gain access to the router.
Problem-Solving with Subsystems
The key to solving problems in the system is to try to isolate the problem to a
specific subsystem. The first step in solving startup problems is to compare what
the system
is
doing
to what it
should be doing
. Because a startup problem is
usually attributable to 1 component, it is more efficient to first isolate the problem
to a subsystem rather than troubleshoot each component in the system.
todd.book Page 14 Tuesday, November 27, 2007 6:02 PM
