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7.3.2
SNMP Community Strings
CAUTION – 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-425 Advanced Satellite Modem uses Community Strings as a password scheme that
provides authentication before gaining access to the modem agent's 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.
The user defines three Community Strings for SNMP access:
•
Read Community
•
Write Community
•
Trap Community
For proper SNMP operation, the CDM-425 Advanced Satellite Modem MIB files
must be used with the associated version of the CDM-425 Advanced Satellite
Modem M&C. Read the CDM-425 Advanced Satellite Modem FW Release Notes for
information on the required FW/SW compatibility.
7.3.3
SNMP Traps
The modem must be in Ethernet remote mode for the traps to work. You must
also properly assign/configure the Trap IP Address.
The CDM-425 Advanced Satellite Modem supports both SNMPv1 traps and SNMPv2
notifications. The modem has the ability to send out SNMP traps when certain events occur and
clear in the modem, including unit faults, Tx faults, Rx faults, and ODU faults.
You only need to compile the "Traps" file if you intend to use SNMPv1 traps. You may configure
which style of traps the modem sends by using the CDM425SNMPTrapVersion OID.
The CDM-425 Advanced Satellite Modem supports the following MIB2 v1 traps / v2 notifications:
MIB2 SNMPv1 trap: Authentication Failure
MIB2 SNMPv2 notifications: Authentication Failure
Ethernet-based Remote Product Management
CDM-425 Advanced Satellite Modem
default = public
default = private
default = comtech
5
1.3.6.1.6.3.1.1.5.5
7–3
Revision 0
MN-CDM-425
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