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More on community strings | 119
Setup Guide
either disable all such traps or use only a single correct community string for
each device that issues a trap.
Note: If another network management system is used in the same network with
Network Discovery, this other system may generate alarms due to these
traps.
Directed Community Strings
If a device is programmed with a directed community string (sometimes known
as a direct access list), it will reject the attempt by Network Discovery to SNMP
QUERY it, even if Network Discovery has been given the correct community
string. With a directed community string, each device checks not only the
“password,” but also to see if the Peregrine appliance is on the list of “trusted”
devices.
You can allow Network Discovery to communicate with a device with a directed
community string, but you cannot do so merely by configuring Network
Discovery. You must also give the device itself an entry for a directed
community string associated with the IP address of the Peregrine appliance.
Deleting a community string
You can delete a single community string, or you can delete an entire
Community Property Group of community strings. Be sure you know which
procedure you want to perform.
You cannot delete an entire Community Property Group if an IPv4 range is using
it.
To delete a single community string
1 Click Administration > Network Configuration > Community Property
Groups > Modify a community property group.
2 Select a Community Property Group from the pull-down list.
3 Click Select.
4 Under the “Delete a Community String” heading, select the community
string you want to delete and click Submit.