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Your phone voluntarily tags the hotspot data with specific TTL values which carriers use to segment the data. Not all carriers work the same though.
by ezfe 5mo ago
Your phone voluntarily tags the hotspot data with specific TTL values which carriers use to segment the data. Not all carriers work the same though.
- jamiek88 5mo agoSuper easy to spoof too.
- eptcyka 5mo agoVoluntarily tags specific TTL values much like your home router does. Some providers assign a different IP to hotspot users.
- rkagerer 5mo agoDifferent applications on a single device can't apply different TTL's? I thought TTL was a pretty basic knob exposed to applications. e.g. A sensor that transmits fresh data every 20 seconds doesn't need stale packets bounding around clogging up the pipes, while a file transfer over an intermittently delayed link might benefit from a higher TTL.
- taneq 5mo ago> voluntarily tags Aah, you mean ‘snitches’. :P
- singron 5mo agoSpecifically it decrements the TTL of routed packets, so hotspot traffic will tend to have a TTL of 63 instead of 64. You could theoretically disable this at the risk of creating infinite routing loops, although android probably makes it inaccessible if the kernel has a setting for it at all, so you might have to rewrite packets in user space.
- josh3736 5mo agoIt has been a long time since I've done this, but: If your Android is rooted, it's pretty easy to get tethering working. There's magisk modules that can fix the TTL problem and/or disable the hidden carrier-installed software that Android will ask for permission before enabling tethering.