Technique | Product |
---|---|
Technique#1 | Cisco AGS, Cisco 2000 series, Cisco 2500 series, Cisco 3000 series, 680X0-Based 4000 series, Cisco 7000 series running Cisco IOS 10.0 or later in ROMs, IGS series running Cisco IOS 9.1 or later in ROMs |
Technique#2 | Cisco 1003, Cisco 4500, IDT Orion-based Cisco 3600, Motorola 860-based Cisco 2600 |
Technique#3 | IGS routers running software earlier than Cisco IOS 9.1 |
Technique#4 | CGS, MGS, AGS, AGS+, 70X0 running ROMs earlier than Cisco IOS 10.0 |
Technique#5 | 500-CS Communication Servers |
Technique#6 | Cisco 1020 |
Technique | Product |
---|---|
Technique#7 | Catalyst 1200, Catalyst 5000 |
Technique#8 | Catalyst 1600 |
Technique#9 | Catalyst 1800 |
Technique#10 | Catalyst 2600 |
Technique#11 | Catalyst 3000 |
There are three ways to restore enable access to a router when the password is lost. You can view the password, change the password, or erase the configuration and start over as if the box were new.
Each procedure follows these basic steps:
NOTE: Some password recovery requires a terminal to issue a BREAK signal; you must be familiar with how your terminal or PC terminal emulator issues this signal. For example, in ProComm, the keys Alt-B will by default generate the BREAK signal, and in Windows Terminal you press Break or Ctrl+Break. Windows Terminal also allows you to define a function key as BREAK. From the terminal window, select Function Keys and define one as BREAK by filling in the characters ^$B (Shift 6, Shift 4, and Capital B).The following 11 sections contain detailed instructions for specific Cisco routers and Catalyst switches. Locate your product in the section headings to determine which technique to use.
NOTE: If you use 0x41, you can only view or erase the configuration. You cannot change the password.
If you have enable secret xxxx, then:
Type config term and make the changes.
Type enable secret <password>
Press Ctrl-z
If you do not, then:
Type enable password <password>.
Press Ctrl-z.
Follow the steps in this column...
if you have a Cisco 2000 Series, 2500 Series, 3000 Series, 680x0-based 4000 Series, 7000 Series running Cisco IOS 10.0 or later in ROMs, IGS Series running 9.1 or later in ROMs OR if you see the ">" prompt after you issue the break key sequence. |
Follow the steps in this column...
if you have a Cisco 1003, 1004, 3600, 4500, 4700 or IDT Orion-based router (72xx, 75xx) OR if you see the "ROMMON>" prompt after you issue the break key sequence. |
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If you have enable secret xxxx, then:
Type config term and make the changes.
Type enable secret <password>.
Press Ctrl-z
If you do not, then:
Type enable password <password>
Press Ctrl-z
If you have enable secret xxxx, then:
Type config term and make the changes
Type enable secret <password>
Press Ctrl-z
If you do not, then:
Type enable password <password>
Press Ctrl-z
If you have enable secret xxxx, then:
Type config term and make the changes.
Type enable secret <password>.
Press Ctrl-z.
If you do not, then:
Type enable password <password>.
Press Ctrl-z.
To do the password recovery, let the box boot up. When the box has finished booting up and asks for the password, press the NMI switch five times. This will reload the switch and reset the password to its default value of "public."