Usually older Ethernet switches needed to be connected using a crossover cable. Now, most modern switches have auto-crossover feature that lets you use a straight Ethernet cable. You could also connect two computers using a crossover cable, but like with switches, most Ethernet interfaces on computers also support auto-crossover.

ethernet cable, ethernet hub, crossover cable, router

Yes, but it has to be a Crossover Cable, and I think it has to be RJ-45.

The answer is crossover cable

no, you need to by a crossover Ethernet cable instead of the regular one. the new one will help allot more.