Just looking for a confirmation from someone more knowledgeable than I... can someone confirm that tethering an iPhone (16 Pro, doubt that matters) via USB to a Beryl AX and mangling the TTL/HL to 65 does NOT avoid the data being counted as "hotspot data" on T-Mobile? It doesn't appear to matter in my testing. Is this because the iPhone is using a hardcoded APN when "personal hotspot" is enabled? Or is there something else in play here?
For reference sake here are the rules I'm using to mangle TTL/HL and I can confirm that packets are hitting the v4 rules at least..
It's been my experience that some cellular carriers are now able to detect hotspot (tethering) data even when the TTL/HL has been mangled. I have however found that combining the mangle with a VPN does allow the hotspot/tether to go undetected when using Visible's network. I have not confirmed on T-Mobile.
GL.inet router has quite some hiding features , setting TTL is just one of them, "camouflage" is another that will set the upper part of the MAC address, it will also set the DHCP client name, clone MAC will set that DHCP client name to "*" however.
Both devices may each request a DHCP address lease for the same MAC address. Use VPN to avoid packet inspection. Etc etc, detection and hiding is a cat and mouse game . https://android.stackexchange.com/questions/47819/how-can-phone-companies-detect-tethering-incl-wifi-hotspot
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