Mikrotik firewall - can't get rid of external connections?

Question

network hardware

Hi all! Do not judge strictly! I just wanted to get rid of incomprehensible connections
in src.Address, the connection is displayed (and many of them are internal ip addresses) that immediately burst into the Internet
, I definitely don’t have such addresses inside the network) there are no viruses! ppoe - ISP connection

my firewall is a standard set of rules from the wiki

Thank you all in advance!

Answer 1

It looks like someone on your network is downloading torrents and these are incoming connections from peers.
https://habrahabr.ru/sandbox/65236/

Answer 2

I recommend starting with the correct firewall settings. The first step is to set a rule allowing established & related traffic. Next, disable invalid. At the end, make a rule that prohibits everything if the firewall is normally closed. And between them to make a permit. And after that, see what and how.

Answer 3

Judging by the port, this is very similar to a torrent client, perhaps transmission. The connection apparently comes to your external ip.