Redirect Service; Chapter 14 Redirect Service; Overview; Http Redirect - ZyXEL Communications ZyWall 110 User Manual

14.1 Overview

Redirect Service redirects HTTP and SMTP traffic.

14.1.1 HTTP Redirect

HTTP redirect forwards the client's HTTP request (except HTTP traffic destined for the Zyxel Device) 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.
Figure 310 HTTP Redirect Example

14.1.2 SMTP Redirect

SMTP redirect forwards the authenticated client's SMTP message to a SMTP server, that handles all
outgoing e-mail messages. In the following example, SMTP server A is connected to the lan2 interface in
the LAN2 zone. When a client connected to the lan1 interface in the LAN1 zone logs into the Zyxel
Device and wants to send an e-mail, its SMTP message is redirected to SMTP server A. SMTP server A then
sends it to a mail server, where the message will be delivered to the recipient.
The Zyxel Device forwards SMTP traffic using TCP port 25.

Redirect Service

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