WCF Session without Credentials

Is it possible to configure a WCF service to use sessions, and also n开发者_如何学JAVAot to require the client to send any credentials?

If so, how should the bindings section of the service's App.config file look?

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See http://msdn.microsoft.com/en-us/library/system.servicemodel.channels.reliablesessionbindingelement.aspx to establish a session using the WS-ReliableMessaging spec. I don't see why this should require authentication.

<customBinding>
  <binding name="BasicWithWSReliable">
     <reliableSession />
     <httpTransport authenticationScheme="Anonymous"/>
  </binding>
</customBinding>