Tunneling TCP Protocol Overview
If the client configuration indicates that HTTP traffic to the server should be routed through a proxy, the client COM+ runtime environment establishes a TCP/Internet Protocol (IP) connection to that proxy. It then sends the HTTP CONNECT method to the proxy requesting connection to port 80 on the server host. Figure 14.1 shows a diagram of the Tunneling TCP flow.
Figure 14.1. The Tunneling TCP flow.
The proxy establishes a TCP/IP connection with the server host. This assumes that the proxy is configured to enable the HTTP CONNECT method on the port connected by the client. This port configuration on the proxy ...