The management entity from which a SNMP request arrives.
For the CLI application the value will be (2).
The value will be (3) if the request is from a web
application. If the management entity is a Net Management
application the value will be either (4) or (5) depending
on whether they are carrying an IPv4 or an IPv6 address.
For the OA (Open Architecture application the value
will be (6).