Google Translation:

If your network has IPV6 public address

Many users' networks do not have the public address of IPV4. However, in recent days, IPV6 networks have gained popularity, and many users have received IPV6 public network addresses.
You can set up a firewall rule, open ports, and use the IPV6 network to seed.
1. Make sure your router and download machine get the IPV6 address (perhaps you need to update the router firmware).
2. Set a new firewall rule on the router, open the port (such as the 51413 of tr). When using IPV4, you need to open firewall rules and also need to port forward the port to the download machine. For IPV6, you only need to open the port. If you are using openwrt, you can search for "openwrt firewall"