Unless you are in a very specific edge case/particular setup, you should have no such problem.
As delivered the two devices should behave EXACTLY as a wire (hence wireless wire), they should transport to the other side what you feed one side, and viceversa a sort of "dumb switch", see:
What do you mean "unhappy" about DHCP?
Devices on the other side are running a DHCP client but they do not get data from the DHCP server running "this" side?