How to: Configure Team Foundation Version Control to use Proxy Server
You can configure Team Foundation version control to use a proxy server, which caches copies of version control files in the location of a distributed team. You may reduce bandwidth requirements for remote developers by using a proxy server.
To perform this procedure, you must be a member of the Users security group on the computer on which you are configuring Team Explorer.
To configure Team Explorer to use Team Foundation Server Proxy
Launch Microsoft Visual Studio 2012.
On the Tools menu, choose Options.
The Options dialog box appears.
Expand Source Control, and then choose Visual Studio Team Foundation Server.
Select the Use proxy server for file downloads check box.
In the Proxy server name box, type the name of the computer that is hosting Team Foundation Server Proxy.
In the Port box, type the port number for Team Foundation Server Proxy, and then click OK.
Team Foundation Server Proxy typically listens for client requests on port 8081.