I have been following the instruction by http://www.codeproject.com/Articles/675943/SSRS-Forms-Authentication

I am using sqlserver 2012 Reporting service, How to achieve custom authentication in SSRS report access

In detail: to achieve custom authentication in SSRS report,Need to call logonuser method from reportingService2010.asmx proxy class. Internally asmx logonuser method call the AuthenticationExtension method. Is it possible to authenticate user without calling logonuser method from asmx.

Because we are not storing user credentials in reportserver DB and unable to verify the login user credentials. is it any other way to achieve custom authentication in SSRS report access when UserCredentials not stored in ReportserverDB.

Hi azarmico,

Please  implement custom authentication for that.Below is the link that will guide you

http://msdn.microsoft.com/en-us/library/cc281383.aspx