I am planning to upgrade from PIX 6.3(1) to 7.0.
But if I wish to downgrade later for some reason, I need the old PIX 6.3(1) image again. Right? But cisco.com's site has only 6.3(5). Can I use the downgrade command to downgrade to 6.3(5) when the actual previously installed version is 6.3(1)?
Or do i need to upgrade first to 6.3(5), then to 7.0, then be able to use the downgrade command to downgrade to 6.3(5)?
thanks a lot