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1 management information base (mib) files, 2 snmp community strings – Comtech EF Data TRP500 User Manual

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TRP500-4450 C-band Outdoor Amplifier

Revision 1

Ethernet Management

MN-TRP500

4–2

4.3.1 Management Information Base (MIB) Files

MIB files are used for SNMP remote management and consist of Object Identifiers (OIDs). Each
OID is a node that provides remote management of a particular function. A MIB file is a tree of
nodes that is unique to a particular device.

The following MIB files are associated with the TRP500:

MIB File/Name

Description

FW-0000238-.mib
ComtechEFData
Root MIB file

ComtechEFData MIB file gives the root tree for ALL Comtech EF 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-0000236- .mib
TRP500 MIB file

MIB file consists of all of the OIDs for management of the amplifier functions

FW-0000237- .mib
TRP500 Traps
MIB file

Trap MIB file is provided for SNMPv1 traps common for TRP500.

These MIB files should be compiled in a MIB Browser or SNMP Network Monitoring System server.

Note: The SNMP agent supports both “SNMPv1” and “v2c”. The “Traps” file only needs to be
compiled if “SNMPv1” traps are to be used.

4.3.2 SNMP Community Strings

The TRP500 uses community strings as a password scheme that provides authentication before
gaining access to the TRP500 agent’s MIBs.

In “SNMP v1/v2c”, the 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. A packet sniffer can easily obtain the
community string by viewing the SNMP traffic on the network.

The community string is entered into the MIB Browser or Network Node Management software
and is used to authenticate users and determine access privileges to the SNMP agent.

The user defines three Community Strings for SNMP access:

• Read Community

default = public

• Write Community

default = private

• Trap Community

default = comtech