Cisco 3600 Series Посібник користувача - Сторінка 2

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Друкувати сторінку

Step−by−Step Procedure

Follow these steps in order to recover your password:

Attach a terminal or PC with terminal emulation to the console port of the router.

Use these terminal settings:

♦

9600 baud rate

♦

No parity

♦

8 data bits

♦

1 stop bit

♦

No flow control

Refer to these documents for information on how to cable and connect a terminal to the console port

or the AUX port:

♦

Cabling Guide for Console and AUX Ports

♦

Connecting a Terminal to the Console Port on Catalyst Switches

♦

Connect a Terminal to Catalyst 2948G−L3, 4908G−L3, and 4840G Series Switches

If you can access the router, type show version at the prompt, and record the configuration register

setting. See Example of Password Recovery Procedure in order to view the output of a show version

command

Note: The configuration register is usually set to 0x2102 or 0x102. If you can no longer access the

router (because of a lost login or TACACS password), you can safely assume that your configuration

Use the power switch in order to turn off the router, and then turn the router back on.

Important Notes:

♦

In order to simulate this step on a Cisco 6400, pull out and then plug in the Node Route

Processor (NRP) or Node Switch Processor (NSP) card.

♦

In order to simulate this step on a Cisco 6x00 with NI−2, pull out and then plug in the NI−2

card.

Press Break on the terminal keyboard within 60 seconds of power up in order to put the router into

ROMMON.

If the break sequence does not work, refer to Standard Break Key Sequence Combinations During

Password Recovery for other key combinations.

Type confreg 0x2142 at the rommon 1> prompt in order to boot from Flash.

This step bypasses the startup configuration where the passwords are stored.

Type reset at the rommon 2> prompt.

The router reboots, but ignores the saved configuration.

Type no after each setup question, or press Ctrl−C in order to skip the initial setup procedure.

Type enable at the Router> prompt.

You are in enable mode and should see the Router# prompt.

Type configure memory or copy startup−config running−config in order to copy the nonvolatile

RAM (NVRAM) into memory.

Important: Do not type copy running−config startup−config or write. These commands erase your