The number of addresses that are currently in the
AddressTable for this port. If this object has the same value as
hpnicfSecureNumberAddresses, then no more addresses can be authorised on this
port. The number will not include and limit the number of
static mac addresses that configured by manager.
Those objects are bound by the relationship:
hpnicfSecureNumberAddressesStored <= hpnicfSecureNumberAddresses <=
hpnicfSecureMaximumAddresses