I have a VPN Concentrator 3030, which my remote users connect to from home. The idle timeout is set to 30 minutes, however, I do not see anyone disconnected due to lack of activity, even if they are connected for over 24 hours. I assume that they are keeping MS Outlook open and that emails will pop up in their Inbox while connected. I'm sure that Exchange & Outlook are communicating back and forth, and this this is probably the traffic that is keeping the connection "active".
How do I enforce the "Inactive" policy. Can I exclude certain types of traffic?