hotspot

Hellow I have got a problem with Ip forwarding.

I have a hotspot server and I also have a pppoe server their ip pool is the same.I have one client which is connected by pppoe client to the server and it’s ip is:192.168.88.102 and that antenna also has port forward to the camera and it works ok.

The problem is:My rb450 has also got port forward to that antenna it also works but it only works for only the clients which are connected to my server (whose ips are my real ip)

what may the problem be ?