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Visual Basic .NET SNMP MIB Browser Sample Source Code
ActiveSocket provides an easy-to-use development interface to a variety of IP protocols. By using ActiveSocket, you can very easily create or enhance applications with network features.
ActiveSocket features the following: DNS, FTP, HTTP, HTTPs, ICMP Ping, IP-to-Country, MSN, NTP, RSH, SCP, SFTP, SNMP v1/v2c (Get, GetNext, Set), SNMP Traps, SNMP MIB, SSH, TCP, Telnet, TFTP, UDP, Telnet, Wake-On-LAN and more.
SNMP MIB Browsing can be well integrated into Visual Basic .NET environments. This document describes how ActiveSocket's SNMP MIB Browser can be integrated into Visual Basic .NET projects.
A management information base (MIB) is a database used to manage the devices in a communications network. The database is hierarchical (tree-structured) and entries are addressed through object identifiers (OID's). A MIB should contain information on these commands and on the target objects (controllable entities or potential sources of status information) with a view to tuning the network transport to the current needs. Each type of object in a MIB database has a name, a syntax, and an encoding. The name is represented uniquely as an OID. An OID is an administratively assigned name. The administrative policies used for assigning names are discussed later in this memo.
Use ActiveSocket's 'SnmpMibBrowser' object to load a MIB database into memory and iterate over all objects and view all properties.
Step 1: Download and install the ActiveSocket Toolkit
Download the the ActiveSocket Toolkit from the ActiveXperts Download Site and start the installation. The installation guides you through the installation process.
Step 2: Create a new Visual Basic .NET Project
Launch Microsoft Visual Studio (for instance 'Microsoft Visual Studio 2003') from the Start menu. Choose 'New' from the 'File' menu and click on 'Project'. In the 'New Project' dialog, select a Visual Studio template (for instance: 'Console Application'). Select a name for the application (for instance: 'DemoApp') and a name for the solution (for instance: 'DemoSolution'). Also, select the directory where you want to store the project (for instance: 'C:\MyProjects):
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Step 3: Refer to the ActiveSocket Library and create the objects
Now that a new project has been created, you must add a reference to the ActiveSocket Toolkit in the project to be able to use the the ActiveSocket object. To do so, choose 'Add Reference...' from the 'Project' menu. In the 'Add Reference' dialog that pops up, select the 'COM' tab and select the 'ActiveSocket 3.1 Type Library' as shown in the following picture:
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Click 'OK' to close the 'Add Reference' dialog.
On top of your code, type the following line to use the ActiveSocket namespace:
Imports ASOCKETLib
In your Main function, declare and create the following objects:
Public m_objSnmpMib As SnmpMibBrowser m_objSnmpMib = New SnmpMibBrowser ()
You can download the complete sample on our ftp site ftp.activexperts-labs.com/samples/network-component. There are many other working ActiveSocket scripts on our site and shipped with the product.