Can I share my Wifi connection on my iPad?

Solution 1:

Just had the same issue in my hotel in the Dominican Republic, where I enjoy a great snow-free christmas. The hotel locks the DCHP to the MAC address of the first device that connects, thereby limiting usage to one device per paying customer--they think.

Just note the MAC address belonging to the wi-fi adapter of your first device and then you can soft-set that for each of your other MacBooks, Windows laptops or what have you. In OS X you can use…

sudo ifconfig en1 ether <your first device's MAC address>

…and then you are good to go. Turn wi-fi off on your first device. It's not perfect, but at least you do not have to pay multiple fees.

Solution 2:

Not in any reasonable manner. Instead, use a portable WISP router. This creates your own local WiFi network yet uses the hotel connection as the WAN. Some are no bigger than your finger if you're concerned about size of this additional hardware component.