Allied Telesis AT-S105 - Manual (Page 100)

Chapter 8: Simple Network Management Protocol (SNMP)
100
SNMP Overview
You can manage a switch by viewing and configuring the management
information base (MIB) objects on the device with the Simple Network
Management Program (SNMP). The IP address of the switch and at least
one of the switch’s community strings is required to manage the switch
using SNMP. The AT-S105 Management Software supports SNMPv1 and
SNMPv2c.
To manage a switch using an SNMP application program, you must do the
following:
ˆ Activate SNMP management on your switch. The default setting for
SNMP management is enabled.
ˆ Compile the Allied Telesis private MIB associated with your switch with
the Network Management Software (NMS) on your management
workstation.
Note
The MIB file is available from the Allied Telesis web site at
www.alliedtelesis.com/support/software.
Enter your hardware product model in the Search by Product
Name field; for example, enter AT-FS750/24POE or AT-FS750/48.
Links for the latest product software and documentation are
displayed. To obtain the latest MIB file, click on the link of the most
recent version of AT-S105 Management software.
Traps A trap is a message sent by the switch to a management workstation or
server to signal an operating event, such as when the device is reset.
An authentication failure trap is similar to other the traps. It too signals an
operating event on the switch. But this trap is somewhat special because it
relates to SNMP management. A switch that sends this trap could be
indicating an attempt by someone to gain unauthorized management
access using an SNMP application program to the switch. There are two
events that can cause a switch to send this trap:
ˆ An SNMP management station attempts to access the switch using an
incorrect or invalid community name.
ˆ An SNMP management station tried to access a closed access
community string, to which its IP address is not assigned.
Given the importance of this trap to the protection of your switch, the
management software allows you to disable and enable it separately from
the other traps. If you enable it, the switch sends this trap if either of the