I received this question on eBay the other day from a potential buyer:
I recently purchased an ipad. I travel often and at some hotels that do not have wifi, an ethernet cable is available. Will this adapter work with the ipad? Can it be used when traveling internationally? Thank you.
Unfortunately, the adapter I sell does NOT work with the iPads. First, there's no way to hook it up as the iPad 1 & 2 do not have a USB port - they have a dock connector port. Even with adapters, you cannot use an ethernet/USB adapter with the iPad as it requires a driver. It is unlikely that such an adapter will be made as Apple doesn't allow network access through the dock port of iPads, iPhones, or iPod Touches.
A company called redpark does make an RJ-45 to iPod adapter but this is NOT an internet connection.
Here's their description for their product:
6 foot long serial cable with RJ-45 connector.
Connects an iPhone, iPad or iPod touch to the console port on Cisco networking gear.
Designed for use with the "Get Console" app available on Apple's "App Store". The Console Cable is not compatible with other iOS apps.
The RJ-45 connector is wired per Cisco console port spec. This is not an ethernet cable.
They had originally offered up this design, but went with the product above. Again, this is for interfacing with Cisco networking equipment. Since this is a serial cable, the pinouts are completely different than an ethernet cable that would give you access to the internet if you plugged it into a broadband port on your cable/DSl model or a wall RJ-45 connection.