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7 cdm-ip snmp c, 8 cdm-ip snmp t – Comtech EF Data CDM-IP 300L User Manual

Page 257

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CDM-IP 300L IP-Centric Satellite Modem

Rev. 1

CD/CDMIP300L.IOM

231

8.5.1.7 CDM-IP SNMP C

OMMUNITY

N

AMES

The CDM-IP300L uses community strings as a password scheme that provides
authentication before gaining access to the CDM-IP300L 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.

8.5.1.8 CDM-IP SNMP T

RAPS

The CDM-IP 300L has the ability to send out SNMP traps when certain events occur in
the modem. For example, when the CDM-IP 300L boots it sends out a coldstart trap and
3 linkup traps, one for each interface that is brought up. The CDM-IP 300L 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.
The CDM-IP 300L supports both SNMPv1 traps and SNMPv2 notifications. Which style
of traps the CDM-IP 300L sends can be configured by the user using the
cdmipSnmpTrapVersion OID.
The following are the MIB2 v1traps/v2 notifications that the CDM-IP 300L supports.
CDM-IP 300L MIB2 SNMPv1 traps:

Cold Start

1

Warm Start

2

Link Down

3

Link Up

4

Authentication Failure

5


CDM-IP 300L MIB2 SNMPv2 notifications:

Cold Start

1.3.6.1.6.3.1.1.5.1

Warm Start

1.3.6.1.6.3.1.1.5.2

Link Down

1.3.6.1.6.3.1.1.5.3

Link Up

1.3.6.1.6.3.1.1.5.4

Authentication Failure

1.3.6.1.6.3.1.1.5.5

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