Examples

Use SnmpSource component to do the basic SNMP WALK.

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#]
					//create snmp session
	SnmpSession s1 = new SnmpSession(); 
									
	//create snmp pdu
	SnmpPdu pdu = new SnmpPdu(); 
	//Specify the Pdu type
	pdu.PduType = EnumPduType.GetNextPdu;
	//Set the community string
	pdu.Community = "public";
	pdu.Version =  SnmpVersion.Version2;
	
	//Creat response pdu.
	SnmpPdu response = null;
	
	//Assign the walked oid.
	string oid = "1.3.6.1.2.1.1";
	string conoid = oid;
		
	// loop for each PDU in the walk
	while (oid.StartsWith(conoid))
	{
		pdu.InnerVariables.Clear();
		SnmpVariable var = SnmpVariable.CreateSnmpVariable(oid);
		pdu.AddRequestVariables(var);
		try
		{
			response = s1.SyncRequest("127.0.0.1", 161, pdu);
		}
		catch(Exception ex)
		{
			System.Console.WriteLine(ex.Message);
			oid = "";
			break;
		}
		if (response.ErrorIndex!= 0)
		{
			System.Console.WriteLine("Response Error:" + response.ErrorStatus);
			break;
		}
		else
		{
			//Display result and assign new oid
			for (int k=0; k< response.InnerVariables.Count; k++)
			{
				oid = response.InnerVariables[k].OID;
				System.Console.WriteLine("Response oid: "  + response.InnerVariables[k].OID);	
				System.Console.WriteLine("Response value: "  + response.InnerVariables[k].Data.ToString());
				System.Console.WriteLine("");
			}
		}
		response.InnerVariables.Clear();
	}

			
				

				[Vb]
					'create snmp session
	    Dim
	s1 As New SnmpSession 
								
	'create snmp pdu
	Dim pdu As New SnmpPdu
	'Specify the Pdu type 
	pdu.PduType = EnumPduType.GetNextPdu
	'Set the community string
	pdu.Community = "public"
	pdu.Version =  SnmpVersion.Version2
		
	'creat response pdu
	Dim response As SnmpPdu = Nothing
	
	'Assign the walked oid.
	Dim oid As String = "1.3.6.1.2.1.1"
	Dim conoid As String = oid
	 
	 'loop for each PDU in the walk
	Do While oid.StartsWith(conoid)
		pdu.InnerVariables.Clear()
		Dim variable1 As SnmpVariable = SnmpVariable.CreateSnmpVariable(oid)
		pdu.AddRequestVariables(variable1)
		Try
			response = s1.SyncRequest("127.0.0.1", 161, pdu) 
		Catch exception1  As	Exception
			Console.WriteLine(exception1.Message)
			oid = ""  
			Exit Do
		End Try 
				
		If (response.ErrorIndex <>  0) Then
			Console.WriteLine(("Response Error:" & response.ErrorStatus))
			Exit Do
		End If
		'Display result and assign new oid
		Dim i As Integer
		For i = 0 To response.InnerVariables.Count - 1
			oid = response.InnerVariables.Item(i).OID
			Console.WriteLine(("Response oid: " & response.InnerVariables.Item(i).OID))
			Console.WriteLine(("Response value: " & response.InnerVariables.Item(i).Data.ToString))
			Console.WriteLine("")
		Next i
		response.InnerVariables.Clear()
	Loop

The syntax to use the included command line example.

Syntax: snmpwalk [Options] host oid

			Options:
			
/version:v1|v2 or /v:v1|v2 Specify the version number.
/port:portnumber or /p:portnumber Specify the port number.
/timeout:ms or /t:ms Time out in milliseconds.
/debug or /d Turn on the debug setting.
/community:community or /c:community Set community.
/? or /help Display this usage message. 
			Example: snmpwalk /d /c:public /p:161 127.0.0.1 1.3.6.1.2.1.1

Examples - snmpwalk