ZyXEL Communications UAG5100, Руководство пользователя

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UAG5100 User’s Guide
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HTTP Redirect
17.1 Overview
HTTP redirect forwards the client’s HTTP request (except HTTP traffic destined for the UAG) to a web
proxy server. In the following example, proxy server A is connected to the lan2 interface in the
LAN2 zone. When a client connected to the lan1 interface in the LAN1 zone wants to open a web
page, its HTTP request is redirected to proxy server A first. If proxy server A cannot find the web
page in its cache, a policy route allows it to access the Internet to get them from a server. Proxy
server A then forwards the response to the client.
Figure 123
HTTP Redirect Example
17.1.1 What You Can Do in this Chapter
Use the HTTP Redirect screens (see Section 17.2 on page 198 ) to display and edit the HTTP
redirect rules.
17.1.2 What You Need to Know
Web Proxy Server
A proxy server helps client devices make indirect requests to access the Internet or outside network
resources/services. A proxy server can act as a firewall or an ALG (application layer gateway)
between the private network and the Internet or other networks. It also keeps hackers from
knowing internal IP addresses.