ZyXEL Communications VANTAGE CNM - V3.1 User Manual page 172

Chapter 6 Device Security Settings
Figure 78 Device Operation > Device Configuration > Security > Content Filter > General
The following table describes the labels in this screen.
Table 69 Device Operation > Device Configuration > 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
172
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.
Select this check box to have the content filter apply to traffic that the device
sends out through a VPN tunnel or receives through a VPN tunnel. The
device applies the content filter to the traffic before encrypting it or after
decrypting it.
Note: The device can apply content filtering on the traffic going
to or from the device's VPN tunnels. It does not apply to
other VPN traffic for which the device is not one of the
gateways (VPN pass-through traffic).
The external database content filtering service has the Vantage CNM check
an external database to find to which category a requested web page
belongs.
Turn on external database content filtering to have the Vantage CNM block
or forward access to web pages depending on the Vantage CNM's external
database content filtering settings.
Vantage CNM User's Guide