I am currently attempting the Raspberry Pi iBeacon tutorial posted by RadiusNetworks at
http://developer.radiusnetworks.com/2013/10/09/how-to-make-an-ibeacon-out-of-
Perhaps you can stop this from happening by making whatever device is attempting a connection stop doing so. This is not normal for iOS. Did you tell it to attempt a connection? Are you sure it is the iOS device doing this? Perhaps it is your computer?
Alternately, if you cannot get it working yourself, I can provide a free .iso file with the exact code we put on the units we sell preassembled. This could eliminate a build problem. Please send a note through our sales contact if you want to try this.