Comtech EF Data CDM-840 - Manual (Page 71)

CDM-840 Remote Router Revision 2
Ethernet-based Remote Product Management MN-CDM840
6–3
6.3 SNMP Interface
The Simple Network Management Protocol (SNMP) is an Internet-standard protocol for
managing devices on IP networks. An SNMP-managed network consists of three key
components:
• The managed device. This includes the CDM-840 Outdoor Remote Router.
• The SNMP Agent. The software that runs on the CDM-840. The CDM-840 SNMP Agent
supports both SNMPv1 and SNMPv2c.
• The user-supplied Network Management System (NMS). The software that runs on the
manager.
6.3.1 Management Information Base (MIB) Files
MIB files are used for SNMP remote management of a unique device. A MIB file consists of a
tree of nodes called Object Identifiers (OIDs). Each OID provides remote management of a
particular function. These MIB files should be compiled in a user-supplied MIB Browser or SNMP
Network Monitoring System server. The following MIB files are associated with the CDM-840:
MIB File/Name
(where ‘x’ is revision letter)
Description
ComtechEFData.mib
ComtechEFData Root MIB file
ComtechEFData M IB f ile gi ves t he r oot t ree f or ALL C omtech E F Data
products and consists of only the following OID:
Name: comtechEFData
Type: MODULE-IDENTITY
OID: 1.3.6.1.4.1.6247
Full path:
iso(1).org(3).dod(6).internet(1).private(4).enterprises(1).comtechEFData(6247)
Module: ComtechEFData
FW-0000407x_CDM840.mib
CDM-840 MIB file
MIB file consists of all of the OIDs for CDM-840 M&C
6.3.2 SNMP Community Strings
In SNMP v1/v2c, the SNMP Community String is sent unencrypted in the SNMP
packets. Caution must be taken by the network administrator to ensure that SNMP
packets travel only over a secure and private network if security is a concern.
The CDM-840 uses Community Strings as a password scheme that provides authentication
before gaining access to the CDM-840 Agent MIBs. They are used to authenticate users and
determine access privileges to the SNMP Agent.
Type the SNMP Community String into the user-supplied MIB Browser or Network Node
Management software.