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CHAPTER 12: SNMP
PARAMETER DESCRIPTION
Engine ID: An octet string identifying the engine ID that this entry should belong to. The string must contain an even number (in
hexadecimal format) with number of digits between 10 and 64, but all-zeros and all-’F’s are not allowed. The SNMPv3 architecture
uses the User-based Security Model (USM) for message security and the View-based Access Control Model (VACM) for access
control. For the USM entry, the usmUserEngineID and usmUserName are the entry’s keys. In a simple agent, usmUserEngineID is
always that agent’s own snmpEngineID value. The value can also take the value of the snmpEngineID of a remote SNMP engine with
which this user can communicate. In other words, if user engine ID equal system engine ID then it is a local user; otherwise it’s a
remote user.
User Name: A string identifying the user name that this entry should belong to. The allowed string length is 1 to 31, and the allowed
content is ASCII characters from 33 to 126.
Security Level: Indicates the security model that this entry should belong to. Possible security models are:
NoAuth, NoPriv: No authentication and no privacy.
Auth, NoPriv: Authentication and no privacy.
Auth, Priv: Authentication and privacy.
The value of security level cannot be modified if entry already exists. That means it must first be ensured that the value is set
correctly.
Authentication Protocol : Indicates the authentication protocol that this entry should belong to. Possible authentication protocols are:
MD5: An optional flag to indicate that this user uses MD5 authentication protocol.
SHA: An optional flag to indicate that this user uses SHA authentication protocol.
The value of security level cannot be modified if entry already exists. That means you must first ensure that the value is set
correctly.
Authentication Password: A string identifying the authentication password phrase. For MD5 authentication protocol, the allowed string
length is 8 to 39. For SHA authentication protocol, the allowed string length is 8 to 39. The allowed content is ASCII characters from
33 to 126.
Privacy Protocol: Indicates the privacy protocol that this entry should belong to. Possible privacy protocols are:
DES: An optional flag to indicate that this user uses DES authentication protocol.
AES: An optional flag to indicate that this user uses AES authentication protocol.
Privacy Password: A string identifying the privacy password phrase. The allowed string length is 8 to 31, and the allowed content is
ASCII characters from 33 to 126.
Buttons
Add New Entry: Click to add a new entry. Specify the name and configure the new entry. Click “Apply.”
Delete: Check to delete the entry. It will be deleted during the next save.
Apply: Click to save changes.
Reset: Click to undo any changes made locally and revert to previously saved values.
