Using the device Serial Number
This is by far the easiest method to reset the Juniper SSG 5 firewall to default settings however it will only work if the device recovery feature has not been disabled using the "unset admin device-reset" command, and you have access to the device serial number and console CLI.
Connect to the console CLI as described in the article linked in the introduction above.
At the Login prompt, enter full device serial number.
At the Password prompt, enter the serial number again. The following message
!!! Lost Password Reset !!! You have initiated a command to reset the device to
factory defaults, clearing all current configuration and settings. Would you like to
Press the "y" key. The following message appears:
!! Reconfirm Lost Password Reset !! If you continue, the entire configuration of the
device will be erased. In addition, a permanent counter will be incremented to
signify that this device has been reset. This is your last chance to cancel thiscommand. If you proceed, the device will return to factory default configuration,
which is: device IP: 192.168.1.1; username: netscreen, password: netscreen.
Would you like to continue? y/[n]
Press the "y" key to reset the device.
Using the Pinhole Reset button
Find the pin-hole reset button on the device (on Juniper SSG5 units it is usually located on the back, between the USB port and the Kensington security slot) and press it down with a pin (a paper-clip usually does the trick) for about 6 seconds. The power light on the device should turn amber and the console screen should read:
Configuration Erasure Process has been initiated.
Waiting for 2nd confirmation.
Don't let go of the reset button just yet.
Let go of the reset button for about 2-3 seconds* (power light will return to green) and press it down again for about 6 seconds, until the power light turns amber and the status light starts flashing red. The screen will then read:
2nd push confirmed.
Configuration Erase sequence accepted, unit reset.
If you don't get it from the first try - don't worry, it took me a couple of times to get the timing right, but it works like a charm once you get a feel for it.
*This part can be tricky because if you push the reset button again too fast - nothing will happen, but if you let go of the reset button for too long, you will get the "Configuration Erasure Process aborted" message and reset will be canceled and you will have to start all over again.
Once the settings have reset to default you can access your Juniper SSG 5 unit using the following default IP address, username and password:
IP Address: 192.168.1.1