V-am spus ca in SUA AT&T ameninta utilizatorii ca le va include automat in abonamente optiunea de internet tethering daca descopera ca ei folosesc metode alternative de a face internet tethering fara a plati taxa oficiala la companie. Acum poate unii dintre voi se intreaba cum oare isi dau seama cei de la AT&T cand un iPhone este folosit pentru tethering. Ei bine raspunsul e simplu, atunci cand un iPhone este folosit pentru tethering el se conecteaza la serverele operatorului de telefonie mobila folosind un APN special. Acel APN a fost special conceput de Apple pentru ca operatorii sa il recunoasca atunci cand un iPhone face trafic de date prin tethering.
Jailbroken iPhones typically use the same tethering technique as a standard iPhone, the one that’s already present in iOS. This method exposes tethering activity quite readily, because the iPhone, when in tethering mode, sends traffic through an alternate APN (AT&T access point/router) for the express purpose of identifying the traffic as tethered data. This makes it extremely easy for AT&T to identify whether or not an iOS device is utilizing tethering, and just how much of their data is consumed via tethering. Some tethering applications for iOS make use of alternative methods and route tethered traffic through the phone’s normal data APN, but by and large, most jailbreakers stick with the stock application because it’s easy to use and doesn’t require any complicated setup. In fact, many iPhone users jailbreak for the sole purpose of avoiding AT&T’s tethering fees (for why, see next section). These are the people AT&T’s is going after.
Desigur ca acum PDANet ofera o solutie foarte simpla de a masca acest trafic insa e bine sa stiti cum anume functioneaza intregul sistem de recunoastere a traficului de date prin tethering. Chiar si fara acel APN cred ca operatorii ar fi putut recunoaste destul de usor traficul avand in vedere ca iPhone-ul ar fi fost un fel de router pentru calculatorul vostru care se conecta la internet. Acum stiti si cum recunosc operatorii traficul de date prin internet tethering, sper doar ca Orange si Cosmote sa nu se razgandeasca vreodata in privinda oferirii gratuite a Personal HotSpot.
