Examples

Use SnmpSource component to make a simple snmp v3 query.

To use this code sample, add a reference to the following assemblies:
SnmpSource.dll

Then import the following namespaces at the top of your code file with using (for C#) or Imports (for VB) keywords:
SnmpSource

[C#]
				
//discover snmp engine
	try
	{
		
// Add snmp variable
		SnmpPdu discover = SnmpPdu.V3Discover("127.0.0.1", 161, "iniuser", 1000);
		
	}
	catch (Exception	ex)
	{ 
		System.Console.Error.WriteLine("Discover PDU: " + ex.Message);
		System.Environment.Exit(1);
	}


	//create snmp session
	SnmpSession s1 = new SnmpSession(); 
							
	//create snmp v3 pdu
	SnmpPdu pdu = new SnmpPdu(); 
	//Specify the Pdu type
	pdu.PduType = EnumPduType.GetPdu;
	//Set the snmp v3 setting
	pdu.Version =  SnmpVersion.Version3;
        
	 version3.V3UserName = "Admin";
         version3.V3AuthenticationEncryptionFlags = SnmpV3AuthenticationEncryptionFlags.NoAuthNoEncr;
         version3.V3AuthoritativeEngineBoots = discovery.V3AuthoritativeEngineBoots;
         version3.V3AuthoritativeEngineID = discovery.V3AuthoritativeEngineID;
         version3.V3AuthoritativeEngineTime = discovery.V3AuthoritativeEngineTime;
         version3.V3ContextEngineID = discovery.V3AuthoritativeEngineID;
         version3.V3ContextName = "context";
         version3.V3MessageID = new Random().Next(0, 0x7fffffff);
	
	//creat response pdu
	SnmpPdu response = null;
 
	// Try to retrieve snmp record
	try
	{
		// Add snmp variable
		SnmpVariable var = SnmpVariable.CreateSnmpVariable("1.3.6.1.2.1.1.5.0");
		pdu.AddRequestVariables(var);
		// Synchronized request snmp SyncRequest(hostip, port, pdu)
		response = s1.SyncRequest("127.0.0.1", 161, pdu);
	}
	catch (Exception	ex)
	{ 
		System.Console.Error.WriteLine("Sending PDU: " + ex.Message);
		System.Environment.Exit(1);
	}
	
	// Display the result
	try
	{
		if(response.ErrorStatus == 0)
		{
			System.Console.WriteLine("Response oid: "  + response.InnerVariables[0].OID);	
			System.Console.WriteLine("Response value: "  + response.InnerVariables[0].Data.ToString());
			System.Console.WriteLine("");
		}
		else
		{
		System.Console.WriteLine("Response error code: "  + response.ErrorStatus);	
		}
		
	}
	catch (Exception	ex)
	{ 
		System.Console.WriteLine("Error in output: " + ex.Message);
	}

Please refer to the SnmpV3Get example with the download.

Examples - snmpget