FreeSnmp

FreeSnmp is a straightforward piece of kit that offers support for SNMP (Simple Network Management Protocol).
It gives advanced network users the possibility of viewing and browsing Management Information Bases (MIBs), as well as performing Walk operations in a comfortable interface.
The installation procedure is rapid and uneventful, and does not require special attention from the user. Once it finishes, you are greeted by a regular window with a well-structured layout, where you can specify the IP address and select a description (e.g. IP address table, route entries, users table).
In order to perform a walk operation, all you have to do is input an Object Identifier (OID). Although the app does not provide buttons for copying the results to the Clipboard, printing or exporting them to an external file for further scrutiny, you can copy this information using the global function available in the context menu after making a text selection.
We have noticed a minimal CPU and RAM consumption during FreeSnmp's runtime, so it does not slow down the computer's overall performance or cause the operating system to hang or crash. Moreover, it allows multiple instances to be run.
Unfortunately, FreeSnmp seems to have some stability issues on newer operating systems. It kept showing error messages during our tests when we attempted to run a Walk operation, so it definitely needs some bug fixes from this point of view. Other than that, FreeSnmp should please all network user levels, thanks to its intuitive layout and intuitive options.