Specify which management entity is allowed to change
the password. 'anyMgmtEntity' management entities are
SNMP management station, console command line interface,
and telnet command line interface. For security reason,
this object can only be modified by console command line
interface or telnet command line interface. The default
value is 'consoleAndTelnet', of which both console and
telnet command line interfaces are allowed to change
the password.