10-07-2022, 02:00 PM
(10-06-2022, 05:24 PM)wibble Wrote: https://android.stackexchange.com/questi...fi-hotspot
gives a few of the methods used to detect tethering.
Many articles point at TTL sniffing and that seems pretty plausible. Tcpdump does show TTL with the -v switch and sure enough, I see packets coming from the tethered laptop at 64 and going to the cell carrier as 63. There are various posts suggesting some nftables magic can change the TTL to evade the sniffing but I haven't been able to get that to work. I guess it's time for the last resort - calling Verizon.
I tried a Ting (T-Mobile) SIM in the Pinephone and tethering worked fine & fast.
