Dell SonicWALL Mandatory Firmware Upgrade | SonicGuard.com
Dell SonicWALL Firmware Upgrade Table Dell SonicWALL Firewall Current Running Firmware Minimum Required SonicOS Firmware Version SuperMassive 9220/9400/9600 6.1.1.1 or newer Upgrade Not Required NSA 2600/3600/4600/5600/6600 6.1.1.1 or newer...