This attribute specifies the MAC address that must be present in the
Destination Address (DA) field of the 802.5 frames received
(typically from a Token Ring interface) in order for the SNA DLR
interface to copy them across this PVC. The MAC address in the
frames is not necessarily the real MAC address of the remote device
since it could be re-mapped at the remote end of the PVC using the
Ddm or Sdm component or the equivalent mapping on another
vendor's equipment.