让IIS在内部网环境中模拟windows用户到SQL server。

I am developing an intranet site using C# and ASP.NET MVC. I have SQL Server on one machine and IIS running on a separate machine. I would like a user to visit the intranet site and without prompting the user internet explorer sends the users windows credentials to IIS and these are then passed to sql server meaning sql server can see the user accessing the database.I am developing an intranet site using C# and A