Problem Solving
vi
Cisco 1750 Router Hardware Installation Guide
78-6169-02
Step 4
Press
Ctrl-Z
to exit configuration mode.
Router(config)#
Ctrl-Z
Step 5
Save your configuration changes:
Router#
copy running-config startup-config
Resetting the Configuration Register Value
Follow these steps once you have recovered or reconfigured a password:
Step 1
Enter the
configure terminal
command to enter configuration mode:
Router#
configure terminal
Step 2
Enter the
config-register
command and the original configuration register value
that you recorded in Step 5.
Step 3
Press
Ctrl-Z
to exit configuration mode:
Router(config)#
Ctrl-Z
Step 4
Reboot the router, and enter the recovered password.
Problem Solving
The key to problem solving is to isolate the problem to a specific subsystem by
comparing what the router is doing to what it should be doing.
When problem solving, consider the following subsystems of the router:
•
WICs and VICs—Refer to the LEDs on the cards and the LEDs on the router
front panel to help identify a failure. For more information on WICs and
VICs, refer to the
Cisco WAN Interface Cards Hardware Installation Guide
that comes with each card.
•
Cables—Check all the external cables that connect the router to the network.
•
Power system—Check the external power source, power cable, router power
supply, and circuit breaker. Check for inadequate ventilation or air circulation
that might cause overheating.
Summary of Contents for 1750
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