I have a group of users who regularly travel with their laptops and i want to be able to have more control on what they are browsing when away from the network.
At the moment when they are in the office they go out through our Watchguard which acts as a transparent proxy and has Websense setup to filter what they can see.
In addition to this when they are connected via SSL VPN externally the traffic is forced down the tunnel and again they use the transparent proxy.
The problem i have though is if they dont connect to the VPN when say in a hotel they can browse what they want.
Is there a way that i can stop browsing access unless they are connected through the VPN.
I know that we could specifiy a proxy in the internet settings but because the Watchguard is a transparent proxy i dont believe this would work.
Any advice would be great.