Snmp Community Strings; Snmp Traps; Common Private Mib; System Information Group - Comtech EF Data CDM-710 Installation And Operation Manual

CDM-710 Broadcast Satellite Modem
SNMP Interface
9.3

SNMP Community Strings

The CDM-710 uses community strings as a password scheme that provides authentication before
gaining access to the CDM-710 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:
9.4

SNMP Traps

The CDM-710 has the ability to send out SNMP traps when certain events occur in the modem.
For example, the CDM-710 also sends out traps when an alarm or a fault occurs in the modem.
These include unit faults, TX faults, and RX faults. A trap is sent both when a fault occurs and is
cleared.
9.5

Common Private MIB

The CDM-710 SNMP agent also implements 4 private MIBs. The CDM-710 Common MIB
holds all unit parameters not associated with Modulator, Demodulator, FEC, or Interface boards.
For detailed OID information please refer to the actual MIB file.

9.5.1 System Information Group

This group provides Serial Number and Model Number information as well as an interface table
that defines the exact hardware configuration of the unit.

9.5.2 Remote Serial Group

This group provides the parameters of the modem's legacy Serial interface. This includes the
Local/Remote State, Physical Interface (RS-232 or RS-485), Address and baud rate selections. In
addition, this group provides address selection for the 1:1 redundancy controller.
Read Community
Write Community
Trap Community
default = public
default = private
default = comtech
9–3
Revision 9
MN/CDM710.IOM