如何使用play框架2集群EHCache

I have never used EHCache before but I realized it is the default cache for playframework versions 2.x. Is it possible to run one instance of EHCache separately on a different server and point multiple app servers to it (how would you configure that)? or does it have to be run as part of the JVM which app-server is running on? in that case how would you make the EHCache of multiple appservers aware of each other? I have never used EHCache before but I realized