I am preparing to set up activesync to be offloaded to our Aventail EX6000 appliance. What I am looking for is instructions for how to do this from a networking and Exchange standpoint. Things like Natting and any exchange server configuration I need to set up. I assume I point the firewall to send the requests to the VPN device, then it forward the request to the EX server. However, any advise or thoughts will be greatly appreciated.