The SNMP Server Connector supports SNMP v1. SNMP v2 is supported without the SNMP v2 authentication and encryption features. You can know further about this connector through the information provided here.
The Connector does not support SNMP TRAP messages.
The SNMP Server Connector operates in server mode only. The transport protocol it uses is UDP and not TCP. UDP is an unreliable transport protocol, and SSL cannot run on top of an unreliable transport protocol. That is why the Connector cannot use SSL to protect the transport layer.
The SNMP Server Connector (contrary to other Connectors in Server Mode) uses DatagramSockets. That is why there is no notion of connection. The SNMP Server Connector uses a single DatagramSocket which receives SNMP packets from many different SNMP managers on the network.
In the getNextClient() method, the socket blocks on the receive() method until an SNMP packet is received. Then, the Connector creates a new instance of itself, passes the received packet to the child Connector and returns the child Connector.
The getNextEntry() method extracts the SNMP request packet attributes and sets them in the conn Entry, ready for Input Attribute Mapping.
The replyEntry() method extracts the Attributes from the conn Entry and creates an SNMP response packet and returns it to the client; the conn Entry should be populated using Output Attribute Mapping.
The replyEntry() method uses the parent Connector's DatagramSocket to send back the response. Since the parent Connector's DatagramSocket is shared among all child Connectors the access to the DatagramSocket is synchronized.