Library /sys$common/syshlp/ncphelp.hlb LOAD, VIA, PHYSICAL ADDRESS p-address  *Conan The Librarian (sorry for the slow response - running on an old VAX)

 Applies only to broadcast circuits.  Specifies the address that the
 target node to be downline loaded currently uses to identify itself.
 The value is the physical address that the target node has set for
 itself or, if the target node has not set a physical address, the
 hardware address associated with the target node's device controller.