Can someone tell me if it is possible in FR to cache in memory (for a short amount of time) Calling-Station-Id from successful machine authentications so that subsequent user authentications can test whether the user is connecting from an authorized device? This is a feature that is available with Cisco ACS version 5 (using attribute Was-Machine-Authenticated) that I am trying to emulate in FR. If it's possible and anyone can share ideas, I would appreciate it. I thought about using a database, but it seems horribly inneficient compared to caching something in memory. I know I could write a custom module or use perl and maintain the cache in a file, but I don't want to reinvent the wheel and I'm hoping there's an easier and more efficient way to accomplish this.. Thanks for your time..