SNMP Traps empfangen und interpretieren

internal class Program
    {
        public static HashSet<string> processedTraps = new HashSet<string>();
        static void Main(string[] args)
        {

            int port;
            string targetOidPrefix = "1.3.6.1.4.1.11.2.14.2.10.2.1.3";  
            string targetValue = null;

            if (args.Length == 0)
            {
                port = 162;
            }
            else
            {
                 port = int.Parse(args[0]);
            }
            // Construct a socket and bind it to the trap manager port 162 
            Socket socket = new Socket(AddressFamily.InterNetwork, SocketType.Dgram, ProtocolType.Udp);
            Console.WriteLine("Creating Socket..");  
            IPEndPoint ipep = new IPEndPoint(IPAddress.Any, port);
            Console.WriteLine("Setting Socket Configuration..");  
            EndPoint ep = (EndPoint)ipep;
            socket.Bind(ep);
            Console.WriteLine($"Binding Socket on Address: {ipep.Address} using Port: {ipep.Port}");  
           
            // Disable timeout processing. Just block until packet is received 
            socket.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.ReceiveTimeout, 0);
            bool run = true;
            int inlen = -1;
            while (run)
            {
                Console.WriteLine($"Listening on Port: {ipep.Port}...");  
                byte[] indata = new byte[16 * 1024];
                // 16KB receive buffer int inlen = 0;
                IPEndPoint peer = new IPEndPoint(IPAddress.Any, 0);
                EndPoint inep = (EndPoint)peer;
                try
                {
                    inlen = socket.ReceiveFrom(indata, ref inep);
                }
                catch (Exception ex)
                {
                    Console.WriteLine("Exception {0}", ex.Message);  
                    inlen = -1;
                }
                if (inlen > 0)
                {
                    // Check protocol version int 
                    int ver = SnmpPacket.GetProtocolVersion(indata, inlen);
                    if (ver == (int)SnmpVersion.Ver1)
                    {
                        // Parse SNMP Version 1 TRAP packet 
                        SnmpV1TrapPacket pkt = new SnmpV1TrapPacket();
                        pkt.decode(indata, inlen);

                        string swAddress = pkt.Pdu.AgentAddress.ToString();
                        string trapIdentifier = pkt.Pdu.TimeStamp.ToString();

                        if (!processedTraps.Contains(trapIdentifier))
                        {
                            Console.WriteLine("Trap not found in Hashset, processing..");  
                            Console.WriteLine("Hashset with timestamps:");  
                            Console.WriteLine("-----------------------------");  
                            foreach (String s in processedTraps)
                            {
                                Console.WriteLine(s);
                            }
                            Console.WriteLine("-----------------------------");  

                            foreach (Vb v in pkt.Pdu.VbList)
                            {
                                if (v.Oid.ToString().StartsWith(targetOidPrefix))
                                {
                                    Console.WriteLine("Found a matching OID. Paket has a timestamp of: {0}", pkt.Pdu.TimeStamp.ToString());  
                                    targetValue = v.Value.ToString();
                                    break; // Exit the loop once the value is found
                                }
                            }

                            if (targetValue != null)
                            {
                                Console.WriteLine("Value for OID starting with {0}: {1}", targetOidPrefix, targetValue);  

                            }
                            else
                            {
                                Console.WriteLine("No value found for OID starting with {0}", targetOidPrefix);  
                            }

                            Console.WriteLine("** End of SNMP Version 1 TRAP data.");  

                            processedTraps.Add(trapIdentifier);
                            Console.WriteLine("Hashset with timestamps after processing:");  
                            Console.WriteLine("-----------------------------");  
                            foreach (String s in processedTraps)
                            {
                                Console.WriteLine(s);
                            }
                            Console.WriteLine("-----------------------------");  
                        }
                        else
                        {
                            Console.WriteLine("Trap already processed: {0}", trapIdentifier);  
                        }
                            
                    }
                }
                else
                {
                    if (inlen == 0)
                        Console.WriteLine("Zero length packet received.");  
                }
            }
        }
    }