Digitus DN-95601, Руководство пользователя

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Configuration - SNMP
SNMP
To get detailed status information of the device SNMP can be used. SNMP communicates via UDP (port 161):
Supported SNMP commands:
- SNMPGET:
request status information
- SNMPGETNEXT: request the next status information
- SNMPSET:
request change of status
You will need a Network Management System, e.g. HP-Open View, OpenNMS, Nagios etc., or the
command line tools of NET-SNMP to request information via SNMP.
SNMP-communities
SNMP authentifies requests by so called communities.
The public community has to be added to SNMP-read-requests and the private community to SNMP
write requests. You can see the SNMP communites like read/write passwords. SNMP v1 and v2
transmit the communities without encryption. Therefore it is simple to spy out these communities. We
recommend to use a DMZ or IP ACL.
MIB
All information, that can be requested or changed, the so called „Managed Objects“, are described in
„Management Information Bases“ (MIBs).
There are three MIBs, which can be requested from the unit:
„system“, „interface“
„system“ and „interface“ are standardized MIBs (MIB-II).
At least, there are so called Object Identifiers (OID) subordinated to those three structures. An OID
describes the location of an information inside a MIB.
SNMP-traps
SNMP-Traps are system messages, sent via SNMP-protocol to different clients. On following events a
SNMP-Trap will be dispatched:

Min/Max-Alerts from the sensors
Enable SNMP-get
Here you can activate SNMP-get protocol.
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