| (I) A UDP-based, application-layer, Internet Standard protocol
[R2570, R2574] for conveying management information between
managers and agents.
(C) SNMP version 1 uses cleartext passwords for authentication and
access control. (See: community string.) Version 2 adds
cryptographic mechanisms based on DES and MD5. Version 3 provides
enhanced, integrated support for security services, including data
confidentiality, data integrity, data origin authentication, and
message timeliness and limited replay protection.
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