Comtech EF Data CDM-625 - Manual (Page 195)

CDM-625 Advanced Satellite Modem Revision 15
Ethernet-based Remote Product Management MN-CDM625
6–3
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-625 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.
You must define three Community Strings for SNMP access:
• Read Community default = public
• Write Community default = private
• Trap Community default = comtech
For proper SNMP operation, the CDM-625 MIB files must be used with the
associated version of the CDM-625 Advanced Satellite Modem M&C. See the
CDM-625 FW Release Notes for information on the required FW/SW compatibility.
6.3.3 SNMP Traps
The CDM-625 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.
For the trap to work, the modem must be in Ethernet remote mode, and it must
have the Trap IP Address properly configured.
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 CDM625SNMPTrapVersion OID.
The CDM-625 supports the following MIB2 v1 traps / v2 notifications:
MIB2 SNMPv1 trap: Authentication Failure 5
MIB2 SNMPv2 notifications: Authentication Failure 1.3.6.1.6.3.1.1.5.5