Tavve zoneranger User Manual page 173

Configuring the SNMP disallowed list
There may be managed devices to which ZoneRanger should not make any SNMP requests. The
Configuration > SNMP page Disallowed tab can be used to list the devices which ZoneRanger
should not query via SNMP. This list takes precedence over the rules on the Manager tab.
Figure 34-59. Configuration > SNMP page Disallowed tab
In the Disallowed Targets section, list the devices to which ZoneRanger should not make
SNMP requests. The Address may be an address pattern or Node Group.
For some devices, it is desirable to prevent a set of SNMP OIDs from being accessed via SNMP
Proxy. In the Configure disallowed OIDs for SNMP proxy section, a set of Targets, OID
trees, and whether or not to disallow an Get or Set to those Targets. When an SNMP Proxy Get
or Set request is received with a disallowed OID, the OID is removed from the request before
the request is forwarded to the target. When the SNMP response is received from the target, the
disallowed OIDs are added to the response and the value of the OID is set to null. The SNMP
error status is set to NoSuchName and the error index is se to the index of the first disallowed
OID.
For SNMP v3 requests, the request will be evaluated only if the user is defined or the request
uses the security level noAuthNoPriv.
SNMP GetNext and GetBulk requests are not supported.
The Target Rule parameters are:
ZoneRanger 5.5 User's Guide 173