we want to be able to get netflows from ASA to the analyzing tool. as a result, we need to upgrade our ASA to latest 8.xx version. do we need to upgrade only the software or the hardware also?
we are currently running on version 7.2
Hardware: ASA5520, 512 MB RAM, CPU Pentium 4 Celeron 2000 MHz
Internal ATA Compact Flash, 256MB