How to redirect tcp traffic of a specific ip to another port?

Question

linux

There is a server application that listens on 2 ports, for example, 1111 and 2222
Clients can connect to both ports, the required port depends on the client configuration
One of the clients connected to the wrong port 2222 and needs to be redirected to port 1111
There is no connection with the client, only ip is known

Answer 1

call the client and ask to fix the config.