User Documentation

User Manual Managed Switches
50
3.3 Configuring SNMP
Weidmüller managed Switches supports SNMP V1, V2c, and V3. SNMP V1 and SNMP V2c use a
community string match for authentication, which means that SNMP servers access all objects with
read-only or read/write permissions using the community strings public and private by default. SNMP
V3 requires that you select an authentication level of MD5 or SHA, and is the most secure protocol.
You can also enable data encryption to enhance data security.
Supported SNMP security modes and levels are shown in the following table. Select the security
mode and level that will be used to communicate between the SNMP agent and manager.
Protocol
version
UI Setting
Authentication
Encryption
Method
SNMP V1,
V2c
V1, V2c Read
Community
Community string
No
Uses a community string
match for authentication.
V1, V2c Write/Read
Community
Community string
No
Uses a community string
match for authentication.
SNMP V3
No-Auth
No
No
Uses an account with admin or
user to access objects
MD5 or SHA
Authentication based
on MD5 or SHA
No
Provides authentication based
on HMAC-MD5, or
HMAC-SHA algorithms.
8-character passwords are the
minimum requirement for
authentication.
MD5 or SHA
Authentication based
on MD5 or SHA
Data
encryption
key
Provides authentication based
on HMAC-MD5 or HMAC-SHA
algorithms, and data
encryption key. 8-character
passwords and a data
encryption key are the
minimum requirements for
authentication and encryption.
These parameters are configured on the SNMP page. A more detailed explanation of each
parameter is given below the figure.