Chapter 9. Learning SNMP

In this chapter, we'll learn about the Simple Network Management Protocol (SNMP), which is often used for monitoring and gathering information from various devices; such as routers, gateways, printers, and many other types of equipment. We'll start by introducing SNMP and the various concepts surrounding it, which will be useful for readers who do not have much experience with SNMP.

We'll talk about the Tcl package Scotty, which handles SNMP, and how it can be used to query information from within our application. It also provides a Tk-based GUI application that can be used for inspecting devices, discovering systems within our network, and browsing data that can be retrieved over SNMP.

We'll show how Scotty can be used for retrieving SNMP values, and mapping between raw values and readable representations. You will also learn how to set any values that a particular device allows us to set.

This chapter also talks about SNMP traps and how they can be both sent and...