The firewall in the router sets the option to close the port according to the IP. ...

Default port used by common stock analysis software.

1 great wisdom stock software tcp:2222 1, 22223, 22224

2 "Straight Flush" stock software tcp: 860 1

3 Guangfa Xeon tcp:7709

4 tornado 2006 market analysis software tcp:800 1

5 Qianlong "flagship 2006" TCP: 9000

6 guoyuan securities software tcp:9999

7 analyst 2006 receiving system V6.0build001TCP: 5188.

8 Kirin Short-term King Extreme Edition 4.20.79 tcp: 860 1

9 Everbright Securities Super Edition service platform V5.56 tcp:7709, 77 1 1

10 everbright securities stock trading/fund trading TCP: 6677,7711

......

Check it yourself!