| Value | Meaning |
|---|---|
| NONE | No client authentication is requested or required. |
| REQUEST | Accept authentication if presented by client. If this option is set and the client chooses not to provide authentication information about itself, the negotiations will continue. |
| REQUIRED | Require client to present authentication, if not presented then negotiations will be declined. |
Configures the engine to require/request client authentication. <p/> Created by manishk on 10/2/2015.