Authenticating the Mobile Web Client
By default, the Synchronization Manager does not authenticate incoming Remote client requests to make sure that the client is valid. It is recommended that you configure your Siebel application to require that client requests are authenticated by setting the value of the Authentication Method parameter of the Synchronization Manager to one of the supported authentication methods:
Database
LDAP
Siebel
AppServer
The synchronization session takes place through a fixed port that is dedicated to the Synchronization Manager; the default TCP/IP port number is 40400. The port number is set on the Synchronization Manager Server component and is then open in any firewall. Therefore, it is recommended that you change the default value of the port.