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 Chapter 11 Interfaces

ZyWALL USG 50 User’s Guide

A port's IP address varies as its role changes, make sure your computer's IP 
address is in the same subnet as the ZyWALL's lan1, lan2 or dmz IP address.

Use the appropriate lan1, lan2 or dmz IP address to access the ZyWALL.

Figure 151   Configuration > Network > Interface > Port Role    

Each section in this screen is described below.

This screen lists every Ethernet interface and virtual interface created on top of 
Ethernet interfaces. To access this screen, click Configuration > Network > 
Interface > Ethernet.

Table 53   Configuration > Network > Interface > Port Role

LAN1/DMZ
P3~P6

These are physical Ethernet ports. 

lan1 (LAN1)

lan2 (LAN2) 

dmz (DMZ)

These are Ethernet interfaces and the zone to which each belongs. 
Use the radio buttons to select for which interface (network) you want 
to use each physical port. For example, select a port’s LAN1 radio 
button to use the port as part of the lan1 interface. The port will use 
the ZyWALL’s lan1 IP address and MAC address.

When you assign more than one physical port to a network, you 
create a port group. Port groups have the following characteristics:

• There is a layer-2 Ethernet switch between physical ports in the 

port group. This provides wire-speed throughput but no security.

• It can increase the bandwidth between the port group and other 

interfaces.

• The port group uses a single MAC address.

Apply

Click this button to save your changes and apply them to the ZyWALL.

Reset

Click this button to change the port groups to their current 
configuration (last-saved values).

Physical Ports

Interfaces