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SNMP Versions

This SNMP server implementation supports:

SNMPv1 (defined in RFC 1157)
SNMPv2c (Community-based SNMPv2, defined in RFC 1901 and RFC 3416)
SNMPv3 (compliant with RFCs 3410–3418, STD 62)

The server encodes SNMP responses using the same SNMP version received in the corresponding request and encodes traps using the SNMP version configured for the trap recipient.

SNMPv2c supports the capabilities defined for SNMPv1 and provides greater power and flexibility through the addition of several features, including:

More detailed error codes
GetBulk operation for efficient retrieval of large amounts of data
64-bit counters

SNMPv3 is an extensible SNMP framework that supplements the SNMPv2c framework by supporting:

Security for messages
Explicit access control

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