Siebel System Requirements and Supported Platforms > Hardware and Network Requirements > Server Network Requirements >

Firewall Proxy and Reverse Proxy Support

Firewall proxies and reverse proxies implemented in conjunction with Siebel applications are supported with HTTP 1.0 or 1.1 protocol. Special deployment considerations should be made when using proxies that support HTTP 1.0. Oracle strongly recommends using HTTP 1.1 to avoid known errors in HTTP 1.0. For more information, see the topic about installing the Siebel Web Server Extension in the Siebel Installation Guide for the operating system you are using.