A sample to send a snmp trap data.

SnmpTrapClient.java

// A sample to send a trap data.
// Ref.
// http://jis.hatenablog.com/entry/2013/09/05/134001
// https://www.qoosky.net/techs/f8c35bb5d7

import java.net.DatagramPacket;
import java.net.DatagramSocket;
import java.net.InetAddress;

public class SnmpTrapClient {
    public static void main(String args[]) {
        try {
            if (args.length != 1 || args[0].length() == 0) {
                System.out.println("Need a trap send destination...");
                System.exit(1);
            }
            InetAddress serverAddr = InetAddress.getByName(args[0]);
            int trapRcvPort = 162;

            // Create trap data.
            byte sendData[] = {(byte)0x30, (byte)0x62, // Sequence type, Length from here: 98 byte.
                               (byte)0x02, (byte)0x01, (byte)0x01, // v2c
                               // Other data...

                              };
            DatagramPacket dataPacket = new DatagramPacket(sendData, sendData.length, serverAddr, trapRcvPort);

            // Send trap.
            DatagramSocket dataSocket = new DatagramSocket();
            dataSocket.send(dataPacket);
            dataSocket.close();
        }
        catch (Exception e) {
            e.printStackTrace();
        }
    }
}