A.Replace the straight-through cable with a crossover cable
B.Change the subnet mask of the hosts to /25
C.Change the subnet mask of the hosts to /26
D.Change the address of Workstation A to 192.0.2.15
E.Change the address of Workstation B to 192.0.2.111
A.IETF
B.ITU-TQ.933a
C.DDN
D.BFE
E.IEEE802.3
F.Cisco兼容