Issue in DNS over Site to Site VPN

Hi all
I have a problem in my Scenario. I have SSTP site to site between main office and Branch office.

In main office there is RB100AHx2 and static IP address. also there is a Domain (AD,DC,DNS &…) Based on win server 2008 R2.

In branch office,there is RB750r2 and ADSL Service. Users have joined to domain and can ping DC & DNS.

In branch office users must have access to internal web app with address “http://automation.example.net/menu/” and some URL’s on internet at same time.

In fact users must be able to access internal web app via SSTP tunnel and other Internet URL’s via Branch office ADSL Service.

Now there is Big Problem:
How access to users to internal web app and internet at same time.

thanks.

You need to make a map of what addresses areto be sent which way, and setup the routing accordingly.
E.g. only route the addresses of the main office over the VPN and the remainder (default) to internet via the ADSL.
When you have set the default route to the VPN, you cannot reach other sites.

Thanks for your reply.
Would you please explain how to make a “map”?
For example if web server IP address is 192.168.1.10 & DNS 192.168.1.1, how to make a map?
Thanks

I mean a map on a piece of paper, so your network layout becomes clear to you and you know what has to go where.