2643

"Do You Understand SNMPv1, SNMPv2c, and SNMPv3?"

SNMP versions

Struggling through an SNMPv3 transition?

If you've been mandated to use only secure/encrypted SNMPv3, you need a way to avoid replacing all of your v1/v2c SNMP gear. A mediation device allows you to do that. You can keep your older gear and add SNMPv3 security.

SNMP Mediation Help



Just need a tutorial on SNMP versions?

The quick summary below will help you understand how SNMP v1, v2c, and v3 differ. This material is drawn from the SNMP Tutorial White Paper. That's recommended reading if you want to learn about SNMP quickly.

PDF Download SNMP Tutorial PDF




SNMPv1


SNMPv1 was the first version of SNMP. Although it accomplished its goal of being an open, standard protocol, it was found to be lacking in key areas for certain applications. Later versions have addressed many of these problems. Smaller RTUs commonly support SNMPv1.

SNMPv2C


SNMPv2c is a sub-version of SNMPv2. Its key advantage over previous versions is the Inform command. Unlike Traps, which are simply received by a manager, Informs are positively acknowledged with a response message. If a manager does not reply to an Inform, the SNMP agent will resend the Inform.

Other advantages include:

NOTE: Not all devices are SNMPv2c compliant, so your SNMP manager should be downward compatible with SNMPv1 devices. You can also use an SNMPv3 mediation device to ensure compatibility.

SNMP V3


SNMPv3 is the newest version of SNMP. Its primary feature is enhanced security.

The "EngineID" Identifier in SNMPv3 uniquely identifies each SNMP entity. Conflicts can occur if two SNMP entities have duplicate EngineID's. The EngineID is used to generate the key for authenticated messages.

SNMPv3 security comes primarily in 2 forms:

The NetGuardian 832A is one RTU that supports SNMPv3.

To learn more about the SNMP products that will make your job easier, call the DPS SNMP experts at 1-800-693-0351

Next Page: SNMP Tutorial TOC
PDFDownload SNMP Tutorial PDF

Download the complete SNMP White Paper now (PDF)

SNMP White Paper

The Fast Track Introduction to SNMP by Marshall DenHartog is a quick, 12-page introduction to SNMP. You'll learn about traps, message formats, the MIB, and other fundamental SNMP concepts.

Get Instant Access to SNMP White Paper

Get Answers to All of Your SNMP Questions

At DPS, we're totally focused on remote monitoring, including SNMP protocol. We've worked on thousands of projects that involve SNMP in one form or another.

That experience means that we have SNMP experts on staff. Send us a quick online message (or just give us a call) and we'll answer any SNMP question you have.

Talk with an SNMP Expert Now


Get a Custom Application Diagram of Your Perfect-Fit Monitoring System

There is no other network on the planet that is exactly like yours. For that reason, you need to build a monitoring system that's the right fit for you.

"Buying more than you need" and "buying less than you need" are real risks. You also have to think about training, tech support, and upgrade availability.

Send me a quick online message about what you're trying to accomplish. I'll work with you to build a custom PDF application diagram that's a perfect fit for your network.


Make an Informed Decision


Your network isn't off-the-shelf.

Your monitoring system shouldn't be, either.

Customized monitoring application drawing

We'll walk you through this with a customized monitoring diagram.

Just tell us what you're trying to accomplish with remote monitoring.

Get a Custom Diagram