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Chapter 5 Configuration Basics
ZyWALL USG 100/200 Series User’s Guide
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• Bridge interfaces create a software connection between Ethernet or VLAN interfaces at
the layer-2 (data link, MAC address) level. Then, you can configure the IP address and
subnet mask of the bridge. It is also possible to configure zone-level security between the
member interfaces in the bridge.
• Virtual interfaces increase the amount of routing information in the ZyWALL. There are
three types: virtual Ethernet interfaces (also known as IP alias), virtual VLAN
interfaces, and virtual bridge interfaces.
•The auxiliary interface, along with an external modem, provides an interface the
ZyWALL can use to dial out. This interface can be used as a backup WAN interface, for
example. The auxiliary interface controls the AUX port.
5.2.2 Default Interface and Zone Configuration
This section explains the ZyWALL’s factory default zone and interface configuration. The
following figure uses letters to denote public IP addresses or part of a private IP address.
Figure 45 Default Network Topology
Table 23 ZyWALL USG 200 Default Port, Interface, and Zone Configuration
PORT INTERFACE ZONE
IP ADDRESS AND DHCP
SETTINGS
SUGGESTED USE WITH
DEFAULT SETTINGS
P1, P2 wan1, wan2 WAN DHCP clients Connections to the Internet
P3 opt OPT None, DHCP server disabled Third WAN, additional LAN1,
WLAN, or DMZ port or a separate
network.
P4, P5 lan1 LAN1 192.168.1.1, DHCP server
enabled
Protected LAN
P6 ext-wlan WLAN 10.59.0.1, DHCP server
enabled
Wireless access points
P7 dmz DMZ 192.168.3.1, DHCP server
disabled
Public servers (such as web, e-mail
and FTP)