ZyXEL Communications Internet Security Appliance ZyWALL5UTM 4.0 - Manual (Page 488)

ZyWALL 5/35/70 Series User’s Guide
Chapter 31 Maintenance 488
3 As a transparent bridge does not modify the frames it forwards, it is effectively “stealth”
as it is invisible to attackers.
Bridging devices are most useful in complex environments that require a rapid or new firewall
deployment. A transparent, bridging firewall can also be good for companies with several
branch offices since the setups at these offices are often the same and it's likely that one design
can be used for many of the networks. A bridging firewall could be configured at HQ, sent to
the branches and then installed directly without additional configuration.
31.8 Configuring Device Mode (Router)
To configure and have your ZyWALL work as a router or a bridge, click MAINTENANCE,
then the Device Mode tab. The following applies when the ZyWALL is in router mode.
Figure 251 Device Mode (Router Mode)
The following table describes the labels in this screen.
Table 177 Device Mode (Router Mode)
LABEL DESCRIPTION
Current Device
Mode
Device Mode This displays whether the ZyWALL is functioning as a router or a bridge.
Device Mode Setup
Router When the ZyWALL is in router mode, there is no need to select or clear this radio
button.
IP Address Click LAN, WAN, DMZ or WLAN to go to the LAN, WAN, DMZ or WLAN screen
where you can view and/or change the corresponding settings.