Specifications

Chapter 2 - MIB Structure and SNMP SNMP Access Limitation
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Mediatrix 4100
SNMP Access Limitation
The SNMP access to the Mediatrix 4100 can be limited to only one of its interface or all interfaces.
 To limit the access to the SNMP interface:
1. In the snmpAgentMIB, select the interface where the Mediatrix 4100 can be accessed via SNMP in
the snmpAgentAccess variable.
You have the following choices:
Current MIB Version
You can find out the version of the MIB currently in the Mediatrix 4100.
1. In the sysMgmtMIB, locate the sysMibVersion variable.
This variable displays the current version of the MIB.
Sending Configuration Data to the Mediatrix 4100
The configuration data can be provisioned into the Mediatrix 4100 in two ways:
 as a configuration file sent from the Management Server to the Mediatrix 4100 via TFTP
 as a MIB sent from the Management Server to the Mediatrix 4100 via SNMP
Configuration File
The configuration file is the fastest way to deliver the necessary information. This may be important when
initializing a large number of units at the same time. The configuration file is mostly used for the initial
provisioning sequence (see “
Initial Provisioning Sequence” on page 13 for more details).
For more information on how to use a configuration file for updating the Mediatrix 4100, see “Chapter 7 -
Configuration File Download” on page 99.
Management Information Base – MIB
Sending information via SNMP means that individual variables can be changed without sending the whole
MIB. You could use a dual system where a configuration file is sent for initial configuration and a MIB browser
/ SNMP browser is used to implement minor changes.
Table 20: SNMP Access Limitation Parameters
Access Description
lanOnly SNMP connections are only permitted on the LAN side, which is usually
associated with the ETH2 connector. The LAN IP address is provisioned by the
lanStaticAddress variable.
wanOnly SNMP connections are only permitted on the WAN side, which is usually
associated with the ETH1 connector.
However, if the WAN interface is down and the unit reverts to its LAN
configuration, the SNMP agent can access the Mediatrix 4100 on its LAN
interface.
all SNMP connections are permitted on both the LAN and WAN sides.