Need help on haproxy with CAS server. ssl on both sides

Hi Guys, i have searched around i am unable to find any way on how to make a ssl termination on haproxy and then forward the traffic to CAS servers via another SSL. the config i have is doing it but i am seeing in the server that all the requests are being send from the HAproxy IP instead of the the client and i need CAS to see the client IP etc.

Any help is greatly appreciated.

best regards,