3Com Webcache 3000 (3C16116) manual Web Proxy, Auto-Discovery, Wpad, Netscape Navigator

	Web Proxy Auto-Discovery (WPAD) 53
6	Click Reload.
7	Click OK.
Web Proxy	The Webcache and Microsoft Internet Explorer 5 (and later versions)
Auto-Discovery	support the Web Proxy Auto-Discovery (WPAD) protocol. This protocol
(WPAD)	enables the Web browser on client machines to automatically find and
	load proxy configuration information (stored in a PAC file) from a server
	on your network without user intervention.
	You cannot set up the 3Com Webcache to be used as a WPAD server.
	The Web Proxy Auto-Discovery (WPAD) protocol is not supported by
	Netscape Navigator.
	You can set up a WPAD server that holds a PAC file in a suitable domain
	on your network. When Internet Explorer 5 is launched it searches for a
	WPAD server. The Web browser adds the subdomain “wpad” to the
	beginning of the fully-qualified domain name and progressively removes
	subdomains until it either finds a WPAD server answering the domain
	name or reaches the third-level domain. For example, Web browsers on
	client machines in the a.b.3Com.com domain would query
	wpad.a.b.3Com, wpad.b.3Com.com, and then wpad.3Com.com. If a
	WPAD server is found, the Web browser downloads and executes the
	PAC file and configures the browser settings.
	You must define your network Domain Name System (DNS) server with
	the appropriate use of domains in order to use a WPAD server. For further
	information about the Domain Name System, see “Domain Name
	System” on page 47.
	When a Web browser on a client machine is configured to use a WPAD
	server on your network, there may be a pause of several seconds when it
	first tries to connect to the server. The delay is caused by the Web
	browser connecting to your Domain Name System (DNS) server when it is
	initially started. This is normal behavior. Once the Web browser has
	accessed the WPAD server, subsequent browser requests will operate
	without delays caused by WPAD.