title: security on "pattern:web-service-proxy" in mule
body: <p>I'm using "pattern:web-service-proxy" in mule and I redirect old wsdl in another version on news address wsdl in mule server.</p>
  
  <p>I will use new address of wsdl in my web services.
  I want to put security on new address in mule server, such as:
  I limited my wsdl that every one don't allow to use my wsdl. (user with specific ip allow to use it)
  I set username &amp; password for use wsdl,...</p>
  
  <p>please tell me how to set this security in mule config?</p>