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Why didn't this researcher run tcpdump on all of the iPhone's network interfaces or use sysctl to measure actual data usage?
by jevinskie 15y ago
Why didn't this researcher run tcpdump on all of the iPhone's network interfaces or use sysctl to measure actual data usage?
- mirkules 15y agoPresumably because he was connected to the 3G (or other data) network. Unless he can run tcpdump on the iPhone itself or become a man in the middle between the iPhone and the data network, he couldn't capture traffic. An interesting test would be to connect the iPhone to a regular wireless router, measure the activity, then compare that to billing activity. Although my Android Galaxy S, for example, connects to the data network to look for updates even though it is connected to a wireless network -- so this test could be moot.
- jevinskie 15y agoWith a jailbroken iPhone or a Nokia N900, tcpdump works just fine.