Installation guide

specific proxy. In this scenario, WCCP distributes client requests based on the proxy
server’s IP address, routing traffic to the proxy most likely to contain the requested
information.
In a proxy chain
Websense Content Gateway can be deployed in a network that contains multiple proxy
machines, including one or more third-party proxies. A proxy chain deployment can
involve different scenarios, depending on where Websense Content Gateway is
located in relation to the client. The proxy that is closest to the client is called the
downstream proxy. Other proxies are upstream.
In the following figure, one simple example of proxy chaining shows Websense
Content Gateway as the downstream proxy, and the other shows Websense Content
Gateway as the upstream proxy:
Basic deployment options for proxy chaining using Websense Content Gateway and a
third-party proxy are described in the following sections. See Appendix: Specific
proxy chain configuration procedures for specific instructions on using Blue Coat
®
ProxySG
®
or Microsoft ISA server as the downstream proxy.