User Manual

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III-4. Web Management – Management
III-4-1. MANAGEMENT – SNMP
Simple Network Management Protocol (SNMP) is a standard for collecting and structuring information
on the managed devices of the IP network. It can also modify some of the information to change the
behavior of the devices. SNMP is usually used in monitoring the network. The users can remotely query
the information provided by the devices running SNMP.
The switches support SNMP v1, v2c, and v3. SNMP v1 and v2c authenticates with a community string
for “read-only” or “read-write” permission. The SNMP v3 authentication requires the user to select an
authentication level (MD5 or SHA) and also supports data encryption to make the data safer.
For the SNMP version and authentication method relationship, refer to the table below:
Version
Web Setting
Authentication
Encryption
Method
v1 & v2c
Read Only Community
Community String
No
String match for authentication
Read-Write Community
Community String
No
String match for authentication
v3
Security Level –
No Authentication, No
Privacy
No No
Access by an account (admin or
user)
Security Level –
Authentication, No
Privacy
MD5 / SHA No
Access by an account (admin or
user) and password with more than
8 characters, which is based on MD5
or SHA
Security Level –
Authentication, Privacy
MD5 / SHA
Yes
AES / DES
Access by an account (admin or
user) and password more than 8
characters, which is based on MD5
or SHA. The data encryption is based
on AES or DES and the key requires 8
to 32 characters.