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Transition Networks
S4224 Web User Guide
33558 Rev. C
Page 78 of 669
SNMPv3 User
Configuration
Configure SNMPv3 user table on this page from the
Configuration
-
Security
-
Switch
-
SNMP
>
User
menu path. The entry index keys are
Engine ID
and
User Name
.
The USM is supported per standard with a variety of user access levels and privacy protocols.
SNMP v3 configuration involves setting up SNMP v3 Users, Groups, and Views. SNMP Users have a
specified username, authentication password, privacy password, (if required) and authentication and
privacy protocol assigned. The authentication protocol options are none, MD5, or SHA. The privacy
algorithm options are none, AES, or DES. When a new User is created, it is associated with an SNMP
group.
From the default page, click the
Add New Entry
button to display the new entry edit fields.
Delete
Check to delete the entry. It will be deleted during the next save.
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 equals system engine ID then it is local user; otherwise it's remote user.
User Name
A string identifying the user name that this entry should belong to. The allowed string length is
1
to
32
, and the allowed content is ASCII characters 33 to 126. No spaces can be entered.
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.
Note
: if
Security Level
is set to
NoAuth, NoPriv
, then the remaining fields do not require an entry
or selection.