Snmp Configuration; Settings Via Wbm - WAGO 750-370 Manual

3.1.10 SNMP configuration

The Simple Network Management Protocol (SNMP) transports the control
data that allows information exchange (e.g., status and statistic data), between
individual network components and a management system.
SNMP is supported in version 1, 2c and 3 and represents a standard for device
management on a TCP/IP network. An SNMP management workstation polls
the SNMP agents to obtain information about the corresponding devices.
In SNMP versions 1 and 2c, the exchange of messages is device-related,
which requires the IP address of the SNMP manager to be specified. This IP
address makes communication between SNMP manager and controller
possible.
In SNMP version 3, message exchanges are user-related. Each device that
knows the passwords set via WBM may read or write values from the
controller. With SNMPv3, transmitted data can also be encrypted. SNMPv3 is
frequently used on security-relevant networks as encryption prevents the
requested values, and those to be written, from being obtained by
unauthorized users.
The device data that can be accessed or modified by an SNMP agent is called
a SNMP object. The sets of SNMP objects are stored in a logical database
called Management Information Base (MIB), which is why these objects are
typically known as "MIB objects." The SNMP of the ETHERNET controller
includes both the general MIB according to RFC1213 (MIB II) and a special
WAGO MIB. Configuration of this protocol is performed via Web-Based
Management (WBM) using the "Snmp" link or directly via SNMP.
3.1.10.1

Settings via WBM

SNMP is processed via port 161. The port number for SNMP traps (agent
messages) is 162. These ports must first be enabled in WBM in menu "Port"
so the controller can be reached via SNMP. The port numbers cannot be
modified.
The "Snmp" Web page is used for configuring SNMP functionalities.
However, parameters of the Web page that can be set can also be changed
directly by the appropriate SNMP objects.
WAGO-I/O-SYSTEM 750
PROFINET IO
PROFINET IO 750-370
SNMP configuration
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