Purely handmade:

I also use the ZTE Wireless Cat H1081. I found many tutorials on the Internet and summarized it.

1. Log in with the super administrator account: telecomadmin password: nE7jA%5m, enter the background, and then enable the routing function.

Some places may not be accessible because China Telecom has changed the password.

If you have residential broadband, you can use the second-layer routing method. In Network > Broadband Settings > in the connection name, find INTERNET_B_8_35 and delete it, and then create a new one yourself, mode: routing.