SNMP Security - A Closer Look

Contributed by Jeffrey E. Hammonds

As a Network Monitoring System Administrator I have gained a substantial amount of experience using different versions of SNMP. The purpose of this paper is to discuss the history of SNMP over the years and the security (or lack thereof) that the different versions offer. I will discuss some of the vulnerabilities that the different versions contain, to include SNMPv3 which is the most secure version to date. I will briefly touch on configuring SNMPv3 on Cisco and Brocade devices as well as deploying agents to assist in monitoring servers using SNMPv3. After reading this paper the reader should have a better understanding of all the security options that are available to them using SNMP.

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