Westermo PMI-110-F2G - Manual (Page 115)

4.10.2 SNMP V3 Profile
SNMP v3 can provide more security functions when the user performs remote
management through SNMP protocol. It delivers SNMP information to the
administrator with user authentication; all of data between PMI Switch and the
administrator are encrypted to ensure secure communication.
Security Level: Here the user can select the following levels of security: None,
User Authentication, and Authentication with privacy.
Authentication Protocol: Here the user can select either MD5 (Message‐Digest
algorithm 5) or SHA (Secure Hash Algorithm). MD5 is a widely used cryptographic
hash function with a 128‐bit hash value. SHA (Secure Hash Algorithm) hash
functions refer to five Federal Information Processing Standard‐approved
algorithms for computing a condensed digital representation. PMI Managed
Switch provides 2 user authentication protocols in MD5 and SHA. You will need to
configure SNMP v3 parameters for your SNMP tool with the same authentication
method.
Authentication Password: Here the user enters the SNMP v3 user authentication
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