Fieldbus Coupler 750-341 • 67Configuration of SNMPWAGO-I/O-SYSTEM 750ETHERNET TCP/IP3.1.8 Configuration of SNMPThe Simple Network Management Protocol (SNMP) is responsible for thetransport of control data, which enables the exchange of managementinformation, status and statistical data between individual networkcomponents and a management system. Version 1 of the protocol is supported.SNMP represents a standard for the management of devices in a TCP/IPnetwork. An SNMP management workstation polls the SNMP agent in orderto obtain information on the corresponding devices. Components of a device,which the SNMP agent can access or an SNMP agent can modify, aredescribed as SNMP objects. Collections of SNMP objects are contained in alogical database, the Management Information Base (MIB), and the objectsare frequently referred to as MIB objects.In the ETHERNET coupler/controller, SNMP embraces the common MIB asdescribed in RFC1213 (MIB II).The configuration of SNMP is done via the web-based management systemunder the “Snmp” link or directly via SNMP.On the web page stored in the coupler/controller, the name of the device(sysName), the description of the device (sysDescription), the location(sysLocation) and the contact person (sysContact) can be freely set.In addition, up to 2 trap managers can be specified.The SNMP is executed via Port 161. The port number for SNMP traps is 162.This port number cannot be changed.3.1.8.1 Description of MIB IIThe MIB II conformance to RFC1213 is divided into the following groups:Group Identifier• System Group 1.3.6.1.2.1.1• Interface Group 1.3.6.1.2.1.2• Address Translation Group 1.3.6.1.2.1.3• IP Group 1.3.6.1.2.1.4• IpRoute Table 1.3.6.1.2.1.4.21• IpNetToMediaTable 1.3.6.1.2.1.4.22• ICMP Group 1.3.6.1.2.1.5• TCP Group 1.3.6.1.2.1.6• UDP Group 1.3.6.1.2.1.7• SNMP Group 1.3.6.1.2.1.11• EGP Group 1.3.6.1.2.1.8
