Relationships Between Interfaces - ZyXEL Communications 310 User Manual

Table 37 Ethernet, PPP, Cellular, VLAN, Bridge, and Virtual Interface Characteristics (continued)
CHARACTERISTICS
Packet size (MTU)
DHCP
DHCP server
DHCP relay
Connectivity Check
- * The format of interface names other than the Ethernet and ppp interface names is strict. Each name consists of 2-4
letters (interface type), followed by a number (x). For most interfaces, x is limited by the maximum number of the
type of interface. For VLAN interfaces, x is defined by the number you enter in the VLAN name field. For example,
Ethernet interface names are wan1, wan2, lan1, lan2, dmz; VLAN interfaces are vlan0, vlan1, vlan2, ...; and so on.
** - The names of virtual interfaces are derived from the interfaces on which they are created. For example, virtual
interfaces created on Ethernet interface wan1 are called wan1:1, wan1:2, and so on. Virtual interfaces created on
VLAN interface vlan2 are called vlan2:1, vlan2:2, and so on. You cannot specify the number after the colon(:) in the
Web Configurator; it is a sequential number. You can specify the number after the colon if you use the CLI to set up
a virtual interface.

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 38 Relationships Between Different Types of Interfaces
INTERFACE
port group
Ethernet interface
VLAN interface
bridge interface
PPP interface
virtual interface
(virtual Ethernet interface)
(virtual VLAN interface)
(virtual bridge interface)
trunk
ZyWALL 110/310/1100 Series User's Guide
ETHERNET ETHERNET
Yes Yes
No Yes
No Yes
Yes No
REQUIRED PORT / INTERFACE
physical port
physical port
port group
Ethernet interface
Ethernet interface*
VLAN interface*
Ethernet interface*
VLAN interface*
bridge interface
WAN1, WAN2, OPT*
Ethernet interface*
VLAN interface*
bridge interface
Ethernet interface
Cellular interface
VLAN interface
bridge interface
PPP interface
PPP CELLULAR VLAN
Yes Yes Yes
No No Yes
No No Yes
Yes Yes Yes
Chapter 7 Interfaces
BRIDGE VIRTUAL
Yes No
Yes No
Yes No
Yes No
105