User's Manual

SNMP
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Note: Only the New Filter page allows the Filter ID to be configured.
Filter ID – A user-defined name that identifies the filter. (Maximum length: 32
characters)
Subtree OID – Specifies MIB subtree to be filtered. The MIB subtree must be
defined in the form “.1.3.6.1” and always start with a “.”.
Subtree Mask – A hexadecimal value with each bit masking the corresponding ID in
the MIB subtree. A “1” in the mask indicates an exact match and a “0” indicates a
“wild card.” For example, a mask value of 0xFFBF provides a bit mask “1111 1111
1011 1111.” If applied to the subtree “1.3.6.1.2.1.2.2.1.1.23,” the zero corresponds to
the 10th subtree ID. When there are more subtree IDs than bits in the mask, the
mask is padded with ones.
Filter Type – Indicates if the filter is to “include” or “exclude” the MIB subtree objects
from the filter. Note that MIB objects included in the filter are not sent to the receiving
target and objects excluded are sent. By default all traps are sent, so you can first
use an “include” filter entry for all trap objects. Then use “exclude” entries for the
required trap objects to send to the target. Note that the filter entries are applied in
the sequence that they are defined.