This tutorial discusses the standard Management Information Base: MIB-II. After an introduction it gives the status of the MIB-II, the original design goals, its basic structure and relationship to the TCP/IP layers, and the various groups (system, IF, AT, IP, ICMP, TCP, UDP, EGP, Transmission and SNMP). Note that this tutorial has previously been available as REAL media presentations, and is now converted to podcast format. The contents was created a few years ago, and some parts need to be updated. Completely updated podcasts on this topic are planned, however, for the second half of 2008.