Support for UDP Endpoint

   WCF 4.5 allows to use the UDP protocol for communication, so that developer can create the oneway operation message(fire and forget). In certain scenario UDP is much faster than TCP protocol, because TCP add extra validation to check message are delivered in order. But in case of UDP data deliver is not guaranteed

Configuration settings

    <service name="TestService" behaviorConfiguration="MyServiceBehaviour">

         <endpoint address="" binding="udpBinding"

         Binding Configuration ="MyBindingSetting" contract="iservice">

          <Identity>

            <dns value="localhost"/>

          </identity>

        </endpoint>

      </service>

Multiple Authentication Support

When you develop an ASP.Net application, multiple authentication modes are enabled by changing the “Authentication” setting on virtual directory

Similarly WCF4.5 provides multiple authentications for single endpoint when using the HTTP transport and transport security. In old version WCF, multiple authentications for single service can be provided by creating different endpoint. But in case of WCF4.5 multiple authentications can be configured using single endpoint.

Steps to enable Multiple Authentication in WCF

Step 1: Create WCF service in host in IIS, Set the authentication as mention below

Step 2: Set the security mode to Transport or TransportCredentialOnly and clientCredentialType to "InheritedFromHost"

    <security mode="TransportCredentialOnly">

        <transport clientCredentialType="InheritedFromHost"/>

    </security>