At Startup…

When MacPing begins to poll a network, it issues an =:=@zone  NBP Lookup request, to find entities which have registered NBP names (such as Responder, RegisterName, BroadCast, etc.)  MacPing then sends a broadcast Echo packet to the network number contained in the first NBP response.  These echo packets find devices which answer Echo packets but have not registered a name.  The resulting list will be sorted by Name.