i currently have asa550 running
asa version 7.0
i want to upgrade but as my first time need to know....
if i upgrade the asa image via asdm does it overwrite all my exsiting config/ruleset etc?
in the following articel it stated select tools>upgrade but in my version 5.0 asdm is says tools>upload image from local pc
so my main question is the exact process to follow as my end game is to get to asa v7.2 and asdm 5.2 so i can setup and use L2TP and will it overwirte my existing config?