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Table Of Contents  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

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SNMP Version 1 (SNMPv1) Message Format
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 SNMP Version 3 (SNMPv3) Message Format
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SNMP Version 2 (SNMPv2) Message Formats
(Page 4 of 6)

User-Based SNMP Version 2 (SNMPv2u) Message Format

SNMPv2u was defined as an optional security model at the time that SNMPv2c was standardized. RFC 1910 defines the user-based security model and the message format described in Table 217 and Figure 282.


Table 217: User-Based SNMP Version 2 (SNMPv2u) 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 SNMPv2u, this value is 2. Note that this is the same value as used for SNMPv2p.

Parameters

Octet String

Variable

 

PDU

—

Variable

Protocol Data Unit: The PDU being communicated as the body of the message. This may be in either encrypted or unencrypted form.


Figure 282: User-Based SNMP Version 2 (SNMPv2u) General Message Format

 

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