We have a point to point connection going from a regional office to the main office this is provided by a Service Provider. In our office we have an ISP and what we need to prevent from happening is that if the internet drops from the ISP we could somehow re-direct the internet traffic through this point to point connection and make it so that our Internet connection is pulled from the main office. Is this possible, if so is any hardware needed? is it just a matter of re-configuring? please assist! Thank you.