SSL VPN followed by a Webtop

Dear All,

We are trying to create a remote access setup for our users.

Basically we would like that all users log through a logon page which upon successful authentication it should establish an SSL VPN tunnel. After the successful VPN connection the user will be then presented with a webtop over which he/she can access the various applications such as; OWA, Citrix Xendesktop and other applications.

I have so far managed to have a single webtop with all the applications on it and also the SSL VPN connection. However I did not find a way to achieve the above flow.