The tmnxNatPlBlockAllocationL2Aw notification is sent when an outside IP address and a range of ports is allocated to a NAT subscriber associated with a Layer-2-Aware NAT pool, and when this allocation expires. The allocated block is within the scope of the outside virtual router instance tmnxNatNotifyOutsideVRtrID and the outside IP address tmnxNatNotifyOutsideAddr; it starts with port tmnxNatNotifyPort and ends with port tmnxNatNotifyPort2. The NAT subscriber is identified with its subscriber ID tmnxNatNotifyL2AwSubIdent. The NAT policy is identified with its name tmnxNatNotifyName. When the block allocation is made, the value of the object tmnxNatNotifyTruthValue is 'true'; when the block allocation expires, it is 'false'.