Configuration using Web Based Management and Command Line Interface
4.4 The Agent menu
SCALANCE X-300 / X-400
94 Configuration Manual, 10/2014, C79000-G8976-C187-22
Agent SNMP Configuration
How SNMP works
Using SNMP (Simple Network Management Protocol), a Network Management Station can
configure and monitor SNMP-compliant nodes, such as an IE switch. To allow this, a
management agent is installed in the IE switch with which the management station
exchanges data. There are three packet types:
● Read (management station fetches values from an IE switch)
● Write (management station writes values to an IE switch)
● Send events to registered nodes (traps). The agent sends messages to registered
management stations.
SNMPv3 (and SNMPv2) enhancements compared with SNMPv1
SNMPv3 (and SNMPv2) has the following enhancements compared with the original
SNMPv1:
● Management stations can communicate with each other.
● Multi-level security concept (encryption of data, authentication of users).
● User-defined security settings.
Access permissions with SNMP
When using the SNMP protocol, you specify access permissions by means of the community
string. A community string contains information about the user name and password in a
string. Different community strings are defined for read and write permissions. More complex
and more secure authentications are possible only in some SNMPv2 variants and in
SNMPv3.
Note
To preserve security, you should not use the default values public or
private.
Configuration of SNMP with an IE switch
The "Agent SNMP Configuration" screen appears if you click the "SNMP" folder icon.
In the SNMP Configuration screen, you make the basic settings for SNMP. Enable the check
boxes according to the SNMP functionality you want to use. For detailed settings (traps,
groups, users), there are separate menu items in WBM. Here, you can also make the entries
even if you have not selected the SNMPv3 enabled option, however the entries do not take
effect.
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