Siemens SIMATIC NET CP 343-1 ERPC - Page 63

Further notes on operation
8.7 SNMP agent
CP 343-1 ERPC
Manual, 03/2010, C79000-G8976-C239-02
63
Supported MIB objects
The CP supports the following groups of MIB objects of the MIB II standard in compliance
with RFC1213:
● System
● Interfaces
● Address Translation (AT)
● IP
● ICMP
● TCP
● UDP
● SNMP
The other groups of the MIB II standard are not supported:
● EGP
● Transmission
The CP continues to support the LLDP MIB according to IEEE 802.1AB.
Exceptions / restrictions:
● Write access is permitted only for the following MIB objects of the system group:
sysContact, sysLocation and sysName;
For all other MIB objects / MIB object groups, only read access is possible for security
reasons.
● Traps are not supported by the CP.
“Interfaces" MIB group
This group returns status information about the CP interfaces. The MIB objects of the ifTable
provide the status information of the interface. The Object Identifier "ifIndex" is assigned to
the CP interface as follows:
ifIndex
when the Ethernet interface is ...
... networked ... not networked
Type of interface
1 - Ethernet interface
4 3 Internal CP interface
Access permissions using community name
The CP uses the following community names to control the access rights in the SNMP
agent: