Some TCP Software conStructS the deStination Ethernet addreSS from the top 24 bitS of the Ethernet addreSS followed by the low 24 bitS of the (claSS A) deStination Internet addreSS. For thiSScheme the top 24 bitS of the Ethernet addreSS muSt be the Same on all hoStS on the net. ContraSt ARP.