Figure 183 Security > Content Filter > General; Table 91 Security > Content Filter > General - ZyXEL Communications ZYWALL 35 User Manual

Figure 183 SECURITY > CONTENT FILTER > General
The following table describes the labels in this screen.
Table 91 SECURITY > CONTENT FILTER > General
LABEL
General Setup
Enable Content Filter
Enable Content Filter
for VPN traffic
External Database
Service General Setup
Enable External
Database Content
Filtering
ZyWALL 5/35/70 Series User's Guide
DESCRIPTION
Select this check box to enable the content filter. Content filtering works on
HTTP traffic that is using TCP ports 80, 119, 3128 or 8080.
See Section 28.1 on page 525
on custom ports.
Select this check box to have the content filter apply to traffic that the
ZyWALL sends out through a VPN tunnel or receives through a VPN tunnel.
The ZyWALL applies the content filter to the traffic before encrypting it or
after decrypting it.
Note: The ZyWALL can apply content filtering on the traffic
going to or from the ZyWALL's VPN tunnels. It does not
apply to other VPN traffic for which the ZyWALL is not
one of the gateways (VPN pass-through traffic).
The external database content filtering service has the ZyWALL check an
external database to find to which category a requested web page belongs.
Turn on external database content filtering to have the ZyWALL block or
forward access to web pages depending on the ZyWALL's external database
content filtering settings.
Chapter 16 Content Filtering Screens
if you need to use content filtering for traffic
323