Conceptual table for WEP Key Mappings. The MIB supports
the ability to share a separate WEP key for each RA/TA
pair. The Key Mappings Table contains zero or one entry
for each MAC address and contains two fields for each
entry: WEPOn and the corresponding WEP key. The WEP key
mappings are logically WRITE-ONLY. Attempts to read the
entries in this table shall return unsuccessful status and
values of null or zero. The default value for all WEPOn
fields is FALSE.