Erasing or clearing the config on your Netscreen firewall

A short note on how to erase the configuration in your Netscreen firewall. Mainly so I can find it next time….

To clear a Netscreen config (erase flash) you need to ‘unset all’

netscreen-> unset all
Erase all system config, are you sure y/[n] ? y
netscreen->
netscreen-> reset
Configuration modified, save? [y]/n n
System reset, are you sure? y/[n]
netscreen-> reset
Configuration modified, save? [y]/n n
System reset, are you sure? y/[n] y
In reset …

NetScreen NS-200 Boot Loader Version 3.0.0 (Checksum: B48FB1B8)
Copyright (c) 1997-2003 NetScreen Technologies, Inc.

Total physical memory: 128MB
Test – Pass
Initialization – Done

Model Number: NS-208

Hit any key to run loader
Hit any key to run loader
Hit any key to run loader
Hit any key to run loader

Loading default system image from on-board flash disk…

Ignore image authentication!

Start loading…

…………………………………………………………..

Done.

Remember to use the default passowrd of user:netscreen password: netscreen

About Greg Ferro

Greg Ferro is a Network Engineer/Architect, mostly focussed on Data Centre, Security Infrastructure, and recently Virtualization. He has over 20 years in IT, in wide range of employers working as a freelance consultant including Finance, Service Providers and Online Companies. He is CCIE#6920 and has a few ideas about the world, but not enough to really count.

He is a host on the Packet Pushers Podcast, blogger at EtherealMind.com and on Twitter @etherealmind and Google Plus

You can contact Greg via the site contact page.

  • andy

    i dont’ even get that far…it keeps asking hit any key to reboot your system and after that it comes up the same asking to hit any key to reboot your system…..this is after I upgrade the bootloader.

  • Costyn van Dongen

    Useful thanks!

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