How to check if TTL is fixed?

Question

network hardware

How to check if TTL is fixed?
I'm trying to make it possible to use unlimited (favorable) tariffs on the Internet, which is provided by a mobile operator.
In my case - MTS tariff.
Performed actions to fix the TTL so that the OPSOS did not see that the Internet was being distributed.
It is very similar to the fact that I did everything correctly and fixing the TTL occurs.
But the money is withdrawn.
Therefore, I want to check whether the TLL is fixed.
To continue to ask the right questions on the forum and continue to make tests

Answer 1

You need a computer outside of your network. Run tcpdump\wireshark on that computer to capture packets from your tariff.
In turn, ping the external computer: 1. from the device that distributes the Internet; 2. from the device to which the Internet is distributed.
If ttl capture works, then tcpdump or wireshark should show the same ttl for incoming packets in the 1st and 2nd case.

Answer 2

Perform a ping from the device from which you distribute the Internet and to which you distribute the Internet, if the ttl is the same on both devices, then you did everything right.
p/s/ In addition to ttl, the operator can use additional checks, such as updating windows or other services that are specific to PC only.

Answer 3

HTML:

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<div class="col col--30-of-25"></div>

Search: div class="col col\-\-([0-9]+)\-of\-([0-9]+)"
Replace:div class="col col--$1-of-$2 col--s-$1-of-$2"