The TCP/IP Guide - SNMP Version 2 (SNMPv2) Message Formats

Please Whitelist This Site?

I know everyone hates ads. But please understand that I am providing premium content for free that takes hundreds of hours of time to research and write. I don't want to go to a pay-only model like some sites, but when more and more people block ads, I end up working for free. And I have a family to support, just like you. :)
If you like The TCP/IP Guide, please consider the download version. It's priced very economically and you can read all of it in a convenient format without ads.

If you want to use this site for free, I'd be grateful if you could add the site to the whitelist for Adblock. To do so, just open the Adblock menu and select "Disable on tcpipguide.com". Or go to the Tools menu and select "Adblock Plus Preferences...". Then click "Add Filter..." at the bottom, and add this string: "@@||tcpipguide.com^$document". Then just click OK.

Thanks for your understanding!

Sincerely, Charles Kozierok
Author and Publisher, The TCP/IP Guide

NOTE: Using software to mass-download the site degrades the server and is prohibited.
If you want to read The TCP/IP Guide offline, please consider licensing it. Thank you.

The Book is Here... and Now On Sale!

Get The TCP/IP Guide for your own computer.

The TCP/IP Guide

Custom Search

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 Simple Network Management Protocol (SNMP) Protocol
                     9 SNMP Protocol Messaging and Message Formats

SNMP Version 1 (SNMPv1) Message Format

SNMP Version 3 (SNMPv3) Message Format

SNMP Version 2 (SNMPv2) Message Formats
(Page 2 of 6)

SNMP Version 2 (SNMPv2p) Message Format

The party-based security model is quite complex, but the basic messaging in this version is described through the definition of a management communication, which describes the source and destination party and makes reference to a context for the communication. The overall message format is described in detail in RFC 1445. This information is summarized in Table 215 and shown graphically in Figure 280.

**Table 215: SNMP Version 2 (SNMPv2p) General Message Format**
Field Name	Syntax	Size (bytes)	Description
*Version*	Integer	4	*Version Number:* Describes the SNMP version number of this message; used for ensuring compatibility between versions. For SNMPv2p, this value is 2.
*Dst Party*	Sequence of Integer	Variable	*Destination Party:* An object identifier that specifies the party that is the intended recipient of the message.
*Src Party*	Sequence of Integer	Variable	*Source Party:* An object identifier that specifies the party that is the sender of the message.
*Context*	Sequence of Integer	Variable	*Context:* Defines a set of MIB object resources that is accessible by a particular entity.
*PDU*	—	Variable	*PDU:* The protocol data unit of the message.

**Figure 280: SNMP Version 2 (SNMPv2p) General Message Format**

SNMP Version 1 (SNMPv1) Message Format

SNMP Version 3 (SNMPv3) Message Format

If you find The TCP/IP Guide useful, please consider making a small Paypal donation to help the site, using one of the buttons below. You can also donate a custom amount using the far right button (not less than $1 please, or PayPal gets most/all of your money!) In lieu of a larger donation, you may wish to consider purchasing a download license of The TCP/IP Guide. Thanks for your support!

Home - Table Of Contents - Contact Us

The TCP/IP Guide (http://www.TCPIPGuide.com)
Version 3.0 - Version Date: September 20, 2005

© Copyright 2001-2005 Charles M. Kozierok. All Rights Reserved.
Not responsible for any loss resulting from the use of this site.