Chapter 10 Interface
10.1.6 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 47 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* | |
| VLAN interface* | |
|
| |
PPPoE/PPTP interface | Ethernet interface* | |
| VLAN interface* | |
| bridge interface | |
|
| |
virtual interface |
| |
(virtual Ethernet interface) | Ethernet interface* | |
(virtual VLAN interface) | VLAN interface* | |
(virtual bridge interface) | bridge interface | |
|
| |
trunk | Ethernet 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.
10.2Ethernet Interfaces
This section introduces Ethernet interfaces and then explains the screens for Ethernet interfaces.
10.2.1 Ethernet Interfaces Overview
The ZyWALL has five Ethernet interfaces: ge1, ge2, ge3, ge4, and ge5. Unlike other types of interfaces, you cannot create new Ethernet interfaces nor can you delete any of these five. If you do not assign any physical ports to an Ethernet interface (see Section 10.3.1 on page 194), the Ethernet interface is effectively removed from the ZyWALL, but you can still configure it.
Ethernet interfaces are similar to other types of interfaces in many other ways. They have an IP address, subnet mask, and gateway used to make routing decisions. They restrict the amount of bandwidth and packet size. They can provide DHCP services, and they can verify the gateway is available.
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