topic Re: ASA Erase Config Commands in Network Security

ASA Erase Config Commands

chrisbicm — Fri, 21 Feb 2020 08:57:39 GMT

Just wondering the easiest method to clear my config on an ASA 5520 and start "from scratch".... I have an old config on my ASA that I am looking erase but last time I tried to do this I ended up deleting my asa704-k8.bin file and ended up in a world of hurt. (I had been working with an older version of the IOS on some routers and switches... I miss the good old erase run, erase start)

Thanks,

Chris

Re: ASA Erase Config Commands

dentt — Mon, 12 Jun 2006 16:46:28 GMT

Issue a write erase command. Just dont erase the disk0:

Re: ASA Erase Config Commands

chrisbicm — Mon, 12 Jun 2006 16:52:02 GMT

Dennt,

Thanks for the quick response, I know it was a pretty lame question... I just wanted to make sure before I ended up messing anything up. So if I issue the "write erase" command I am sure it will prompt me first I say yes... and then it should just load up with no interfaces configured just like "new"??

Thanks a lot,

Chris

Re: ASA Erase Config Commands

dentt — Mon, 12 Jun 2006 17:03:23 GMT

If you already have 7.0(x) or better code installed, then you could also reset it to "factory default" with the following command:

configure factory-default [ip_address [mask]]

Using this command will reset it like it just came from Cisco.

A write erase will clear the entire config. If you clear it, make sure when you write your new config that you put things like your boot system variable in.

Re: ASA Erase Config Commands

h.parsons — Mon, 12 Jun 2006 21:54:48 GMT

I just change firewall modes, transparent to routed or vice versa. This will wipe out the config.