Provider bug that allows you to access the network without paying?

Question

Computer networks

They turned off the Internet for me here, but noticed (it takes a long time to explain how) that sites with https are available, while others are redirected to the provider's page (they say pay for the Internet) on port 81. As it turned out now, I have ports 80 and 443 open, but I can’t access the site from vk.com:443 (redirect), and if you try vk.com (with https), then everything is fine.
Now I’m using an anonymizer with https support, until I noticed any differences from the regular Internet, except that the streaming video is not playing.
What can you think of to fully deceive the provider and get full access to the network? If it works out, then I promise an article with all the details, etc. Well, I will inform the provider about such a big (like?) bug.

Answer 1

It seems to me that you should have enough Tor with the function to go only through the necessary ports (available in the settings)
PS And the provider is on the board of shame for such a technique of "blocking"
PPS IMHO this is not worthy of an article, too primitive ...

Answer 2

you can just buy vps and install openvpn on it, which will work on port 443.

Answer 3

Be careful. Extra traffic (regardless of its nature) is easily detected by billing (netflow for example). It is unlikely that they will do something with you, but they can pat your nerves if you wish.

Answer 4

The provider of a familiar geometric figure also noticed such a feature, but did not use it, leaving it for a black case