how can i get pass original ip in tcp mode

[Long Ma]

HI haproxy:
         My haproxy version is 1.6.
         And I use haproxy before my game_server on tcp mode

         Client on A(172.16.77.32)
         HaProxy and game_server on B (172.16.77.37)
         Config file is:
         [cid:image001.png@01D20959.A98C01B0]

         When I use client connect to game_server through haproxy , everything 
is ok, but in my game_server I find the connection remote ip is 172.16.77.37 
not 172.16.77.32
         The question is how can I get original ip though haproxy  on tcp mode

Best Regards

Long Ma
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