Chapter 6 Interfaces

6.1.2 Relationships Between Interfaces

In the ZyWALL, interfaces are usually created on top of other interfaces. Only Ethernet interfaces are created directly on top of the physical ports (or port groups). The relationships between interfaces are explained in the following table.

Table 14 Relationships Between Different Types of Interfaces

INTERFACE

REQUIRED PORT / INTERFACE

auxiliary interface

auxiliary port

 

 

port group

physical port

 

 

Ethernet interface

physical port

 

port group

 

 

VLAN interface

Ethernet interface

 

 

bridge interface

Ethernet interface*

 

WLAN interface*

 

VLAN interface*

 

 

PPPoE/PPTP interface (ZyWALL

Ethernet interface*

USG 300 and above)

VLAN interface*

 

 

bridge interface

 

 

PPPoE/PPTP interface (ZyWALL

WAN1, WAN2, OPT*

USG 200 and below models)

 

 

 

virtual interface

 

(virtual Ethernet interface)

Ethernet interface*

(virtual VLAN interface)

VLAN interface*

(virtual bridge interface)

bridge interface

 

 

trunk

Ethernet interface

 

Cellular interface

 

VLAN interface

 

bridge interface

 

PPPoE/PPTP interface

 

auxiliary interface

 

 

*- You cannot set up a PPPoE/PPTP interface, virtual Ethernet interface, or virtual VLAN interface if the underlying interface is a member of a bridge. You also cannot add an Ethernet interface or VLAN interface to a bridge if the member interface has a virtual interface or PPPoE/PPTP interface on top of it.

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ZyWALL (ZLD) CLI Reference Guide