As most of you probably know, SNMPv3 has several advantages over previous versions of SNMP. Most importantly, SNMPv3 adds security to the protocol. Historically, using SNMPv3 was pretty tricky because not many network monitoring tools supported it and many of the network devices (routers, switches, firewalls) had varying levels of SNMPv3 support. However, things have changed quite a bit in the last few years and SNMPv3 is widely supported today and thus, it's been widely adopted by many companies around the world.
Here at SolarWinds our network monitoring and systems management tools support SNMPv3 and have for quite some time. However, we're commonly asked for help configuring network devices to enable the SNMP. The team here at SolarWinds developed this document to help. This document explains, in detail, how to enable and configure SNMPv3 on a Cisco IOS based device (Cisco routers, Cisco switches, Cisco firewalls, etc).
You can download the document for free from our community site, thwack.com, here: