Chapter 10 Interface

Bridge Interface Overview

A bridge interface creates a software bridge between the members of the bridge interface. It also becomes the ZyWALL’s interface for the resulting network.

A bridge interface may consist of the following members:

•Zero or one WLAN interfaces

•Zero or one VLAN interfaces (and any associated virtual VLAN interfaces)

•Any number of Ethernet interfaces (and any associated virtual Ethernet interfaces)

When you create a bridge interface, the ZyWALL removes the members’ entries from the routing table and adds the bridge interface’s entries to the routing table. For example, this table shows the routing table before and after you create bridge interface br0 (250.250.250.0/23) between lan1 and vlan1.

Table 78 Example: Routing Table Before and After Bridge Interface br0 Is Created

IP ADDRESS(ES)

DESTINATION

210.210.210.0/24

lan1

 

 

210.211.1.0/24

lan1:1

 

 

221.221.221.0/24

vlan0

 

 

222.222.222.0/24

vlan1

 

 

230.230.230.192/26

wan2

 

 

241.241.241.241/32

dmz

 

 

242.242.242.242/32

dmz

 

 

IP ADDRESS(ES)

DESTINATION

221.221.221.0/24

vlan0

 

 

230.230.230.192/26

wan2

 

 

241.241.241.241/32

dmz

 

 

242.242.242.242/32

dmz

 

 

250.250.250.0/23

br0

 

 

In this example, virtual Ethernet interface lan1:1 is also removed from the routing table when lan1 is added to br0. Virtual interfaces are automatically added to or remove from a bridge interface when the underlying interface is added or removed.

10.13.1 Configuring the Bridge Summary Screen

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

Figure 181 Network > Interface > Bridge

Each field is described in the following table.

Table 79 Network > Interface > Bridge

LABEL

DESCRIPTION

#

This field is a sequential value, and it is not associated with any interface.

 

 

Name

This field displays the name of the interface.

 

 

256

 

ZyWALL USG 100/200 Series User’s Guide