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The TCP/IP Guide  9  TCP/IP Application Layer Protocols, Services and Applications (OSI Layers 5, 6 and 7)       9  TCP/IP Network Configuration and Management Protocols (BOOTP, DHCP, SNMP and RMON)            9  TCP/IP Network Management Framework and Protocols (SNMP and RMON)                 9  TCP/IP Internet Standard Management Framework Overview, Architecture, Components and Concepts

TCP/IP Internet Standard Management Framework Architecture and Protocol Components 1 2 3 4 TCP/IP Internet Standard Management Framework and SNMP Standards

SNMPv3

I would imagine that at some point, everyone realized that the situation was a mess, and decided “enough is enough”. In 1996 work began on a new approach to resolve the outstanding issues and return universality to SNMP. In 1998, SNMP version 3 (SNMPv3) was developed, which includes additional enhancements to SNMP and finally gets all the players back on the same team.

SNMPv3 is the most current version of SNMP and is still being actively revised. One of the important changes in SNMPv3 is a more formalized way of handing different security approaches to SNMP—obviously, a lesson learned from the SNMPv2 experience.

SNMPv3 uses SNMPv2 protocol operations and its PDU message format, and the SMIv2 standard from SNMPv2 as well. SNMPv3 allows a number of different security methods to be incorporated into its architecture, and includes standards describing user-based security as defined in SNMPv2u and SNMPv2* as well as a new view-based access control model. It also includes additional tools to aid in the administration of SNMP.

TCP/IP Internet Standard Management Framework Architecture and Protocol Components 1 2 3 4 TCP/IP Internet Standard Management Framework and SNMP Standards