Gets or sets values indicating the level of authentication and impersonation used for this request.
Assembly: System (in System.dll)
Property ValueType: System.Net.Security.AuthenticationLevel
A bitwise combination of the AuthenticationLevel values. The default value is MutualAuthRequested.
In mutual authentication, both the client and server present credentials to establish their identity. The MutualAuthRequired and MutualAuthRequested values are relevant for Kerberos authentication. Kerberos authentication can be supported directly, or can be used if the Negotiate security protocol is used to select the actual security protocol. For more information about authentication protocols, see Internet Authentication.
To determine whether mutual authentication occurred, check the WebResponse.IsMutuallyAuthenticated property.
If you specify the MutualAuthRequired authentication flag value and mutual authentication does not occur, your application will receive an IOException with a ProtocolViolationException inner exception indicating that mutual authentication failed.
Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.