Cisco Systems IPS4520K9 Network Router User Manual


 
E-8
Cisco Intrusion Prevention System Appliance and Module Installation Guide for IPS 7.1
OL-24002-01
Appendix E Troubleshooting
Recovering the Password
Recovering the Password for the Appliance
This section describes the two ways to recover the password for appliances. It contains the following
topics:
Using the GRUB Menu, page E-8
Using ROMMON, page E-8
Using the GRUB Menu
Note
You must have a terminal server or direct serial connection to the appliance to use the GRUB menu to
recover the password.
For the IPS 4270-20, IPS 4345, IPS 4360, IPS 4510, and IPS 4520 appliances, the password recovery is
found in the GRUB menu, which appears during bootup. When the GRUB menu appears, press any key
to pause the boot process. To recover the password on appliances, follow these steps:
Step 1
Reboot the appliance to see the GRUB menu.
GNU GRUB version 0.94 (632K lower / 523264K upper memory)
-------------------------------------------
0: Cisco IPS
1: Cisco IPS Recovery
2: Cisco IPS Clear Password (cisco)
-------------------------------------------
Use the ^ and v keys to select which entry is highlighted.
Press enter to boot the selected OS, 'e' to edit the
Commands before booting, or 'c' for a command-line.
Highlighted entry is 0:
Step 2
Press any key to pause the boot process.
Step 3
Choose
2: Cisco IPS Clear Password (cisco)
. The password is reset to cisco. Log in to the CLI with
username cisco and password cisco. You can then change the password.
Using ROMMON
For the IPS 4345, IPS 4360, IPS 4510, and IPS 4520, you can use the ROMMON to recover the
password. To access the ROMMON CLI, reboot the sensor from a terminal server or direct connection
and interrupt the boot process. To recover the password using the ROMMON CLI, follow these steps:
Step 1
Reboot the appliance.
Step 2
To interrupt the boot process, press ESC or Control-R (terminal server) or send a BREAK command
(direct connection). The boot code either pauses for 10 seconds or displays something similar to one of
the following:
Evaluating boot options
Use BREAK or ESC to interrupt boot