2008年3月9日星期日

Modify the skill of router and the password of switching equipment

In ordinary work, friend asks me: Switching equipment and the router of our unit are so-and-soes originally( person or company) disposition, he has not told password that we now want to do some modifications to again seek, do not go to him. Why do you then can modify password? Downstairs, I talk over the password of modification router and switching equipment for the working experience of how to combine me for many years.

Install the

Installation may

1 , pass through Ethernet go

2, AUX mouth receives MODEM , is linked through

3 , pass through Ethernet

4 , pass through Ethernet go up TELNET

5, Console mouth receives the personal

Pay attention: The first installation of router must go on through 5th kind way; The hardware installation of terminal now is baud rate: 9600, data position: 8, parity check: Have no , stop position: 1, flow control: Have no.

銆€The modification

Specific operating

1 taking a ordinary WIN98 computer as terminal using the installation and joint special cable joins the string mouth of computer and the Console mouth of router. Use the program " it is super and terminal " of WIN98. Take the name of a convenient memory to new connection. In which baud rate: 9600, data position: 8, parity check: Have no , stop position: 1, flow control: Have no.

2, run order show version.

With a router of Cisco

Router > sh ver

Cisco Internetwork Operating System Software

IOS( tm) C2600 Software( C2600 - IS - m), Version12.0( 7) T, RELEASE SOFTWARE(

Copyright( c) 1986-1999by cisco Systems, Inc.

. .

Configuration register is0x2102

Notice is above and this to be all right

Open again 3 after the


4 in the 60 seconds of clock that router starts , press Break key , neglect NVRAM to guide. After being consistent , the hint that sees " rommon 1 >" inputs order: Confreg 0x2142 or o/r0x2142( 25 serieses). After being consistent , the hint of " rommon 2 > " inputs order: Rommon 2 > reset starts router again.

5 when starting router again, see all

" to point out to be consistent, input order: Enable. May see " Router " hint is consistent. Now, you have been in privilege user state to take off.' >After seeing "Router >" to point out to be consistent, input order:

6, input order: Config mem or copy start running examines

Pay attention: Do not use

7, input order: Wr term or show running. Now, you may see that the disposition of this router includes password. If password no encryption, you record comes down may , otherwise you need to change password.

8, input order: Config term. Appearance is refered

9, input order: Enable secret.

10, suggest you to use order in now: The inspection of show ip interface

11, input order: Config - register 0x2102. The original value

12, input Ctrl - z to quit disposition

13, input order: Write mem. Preserve

14, quit privilege user state

State: This modification method applies to the Cisco router of various model.

I succeeds in Cisco 2600, on 3600 serieses of router to use.


1 , start according to make

2, press o to order

o( general value is 0x2102)' >> o( general value
o / r0x2142( Cisco2500 series)' >> o / r0x2142( Cisco2500

Rommon 1 > confreg0x2142

Rommon 2 > reset

3, receive

Modify the

Operate

1 taking a ordinary WIN98 computer as terminal using the installation and joint special cable joins the string mouth of computer and the Console mouth of switching equipment. Use the program " it is super and terminal " of WIN98. Take the name of a convenient memory to new connection. In which baud rate: 9600, data position: 8, parity check: Have no , stop position: 1, flow control: Have no.

2, pull out the

3 , press "mode" button does

4, insert the power supply cord of

The system has been interrupted prior to initializing the flash file system.

The following commands will initialize the flash file system, and finish loading

The operating system software:

Flash_init

Load_helper

Boot
5, input order: Flash_init.

6, input order: Load_helper.

7, input order: Dir flash: . Pay


8, input order: Rename flash: Config.text flash: Config and old name disposition

9, input order:

10, it is in Continue with the configuration dialog? [ yes/no ]:

11 after hint is consistent ,

12, input order: Rename flash: Config.old flash: Config and

13, input order: Copy flash: Config.text system: Running-config copies

14, enter disposition

15, preserve

16, quit privilege user state

State: This modification method applies to the Cisco switching equipment of various model.

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