Perle 833IS, User Manual

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Chapter 9: Configuring the Server
Perle 833IS User Guide 191
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When an invalid login is detected.
Enabled
Click on the box to enable the Trap Host .
IP Address
Enter the IP address of the Trap Host in dotted decimal format.
Community
Select a community that the Trap Host belongs to from the drop box.
Community and
Community Tables
Not everyone on the IP network should be permitted to access the information
controlled by an SNMP Agent. SNMP access to the 833IS is restricted through the
use of communities and community tables.
A community is a group of users having a defined Name and a defined Access level.
The 833IS supports up to five SNMP communities. The default community is
"
public ".
Community tables act like passwords by controlling SNMP access. They list all
SNMP communities and their corresponding access levels.
When the SNMP Agent on the 833IS receives a request for information, it looks for
the name of the requester in the community table. If it is not found, the request is
denied and an error is returned to the user. If the access level of the community is
equivalent to or greater than the access level of the request, it is accepted.
The list of currently defined communities is displayed in the Community table. To
add a new community, click
Add . To edit an existing community, highlight the
community and click Edit . The Community configuration screen will appear.