ZyXEL Communications ISG50 User Manual
ISG50 User’s Guide
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HTTP Redirect
19.1 Overview
HTTP redirect forwards the client’s HTTP request (except HTTP traffic destined for the ISG50) to a
web proxy server. In the following example, proxy server A is connected to the DMZ interface.
When a client connected to 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.
web proxy server. In the following example, proxy server A is connected to the DMZ interface.
When a client connected to 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 218
HTTP Redirect Example
19.1.1 What You Can Do in this Chapter
Use the HTTP Redirect screens (see
) to display and edit the HTTP
redirect rules.
19.1.2 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.
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.
LAN1
ISG