Rockwell Automation 1783-WAPxxx Stratix 5100 Wireless Access Point User Manual - Manual (Page 510)

510 Rockwell Automation Publication 1783-UM006A-EN-P - May 2014
Chapter 19 Configuring SNMP
SNMP Community Strings
SNMP community strings authenticate access to MIB objects and function as
embedded passwords. For the NMS to access the access point, the community
string definitions on the NMS must match at least one of the three community
string definitions on the access point.
A community string can have one of these attributes:
• Read-only - Gives read access to authorized management stations to all
objects in the MIB except the community strings, but does not allow write
access
• Read-write - Gives read and write access to authorized management
stations to all objects in the MIB, but does not allow access to the
community strings
Using SNMP to Access MIB Variables
An example of an NMS is the CiscoWorks network management software.
CiscoWorks 2000 software uses the access point MIB variables to set device
variables and to poll devices on the network for specific information. The results
of a poll can be displayed as a graph and analyzed to troubleshoot internet
working problems, increase network performance, verify the configuration of
devices, monitor traffic loads, and more.
As shown below, the SNMP agent gathers data from the MIB. The agent can
send traps (notification of certain events) to the SNMP manager, that receives
and processes the traps. Traps are messages alerting the SNMP manager to a
condition on the network such as improper user authentication, restarts, link
status (up or down), MAC address tracking, and so forth. The SNMP agent also
responds to MIB-related queries sent by the SNMP manager in
get-request,
get-next-request , and set-request format.
Figure 121 - SNMP Network
For information on supported MIBs and how to access them, see Supported
MIBs on page 579 .
Configuring SNMP This section describes how to configure SNMP on your access point.
get-request, get-next-request,
get-bulk, set-request Network device
get-response, traps
81949 SNMP manager
NMS
MIB
SNMP agent