etsysConfigChangeFirmwareMethod 1.3.6.1.4.1.5624.1.2.12.3.3

The method that was used to cause the last firmware change. i.e. SNMP, TELNET, LM, CLI. If the individual user login, or the source IP address, is available they should be included in this string. example format: <TELNET: 192.168.0.1: JohnJones> Return a null byte if no information is available and the group is otherwise supported.