An issue about connecting to gameserver in self host server

I do my port forwarding like this:
A:57195 --> 127.0.0.1:5055(for master server)
B:60135 --> 127.0.0.1:5056(for game server)
and my public ip is C.
My pun setting is to connect A:57195,so I can connect to my masterserver,but after that what should I do.As I know,the matser server should tell the client where the gameserver is(B:60135).If I set the Game Server Ip config in PhotonControl to public ip(which is C),I can't connect to the game server.So I should connect to B:60135 to enter my gameserver,right?If I should change my loadbalancing.dll?How?Any advice is appreaciated.Thanks in advance.