I am currently doing a demo with the WAE 612 running inline. The appliances are running the latest code (4.0.13.b.12 ). One the core side we have the WAE between our ASA 5510 running 8.0 and our 3825 and on the edge side we have a WAE between our 2811 router(12-4.15T) and switch. Both WAE's are running an in-line. I have been working with the local Cisco engineers and we can't not determine why the traffic between the core and edge is not being optimized. The management WAE has access to both WAE's and all WAE's are online but there is no optimization.