Using a specific connection for a specific site

Hi,

I am in need of your help :)

I have 2 internet connections, one is your typical connection, the other is a specialist connection that should only be used for specific internet services.

When a user enters the URL of a specific website I need the Astaro to use the specialist connection to service this request and NOT the normal main connection.

Anyone know if this is possible and how I would go about setting this up?

Many thanks in advance.