ZyXEL Communications USG-100@USG-200 - V2.20 ED 2 - Page 299

Chapter 13 Interfaces
ZyWALL USG 100/200 Series User’s Guide
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•The auxiliary interface, along with an external modem, provides an interface
the ZyWALL can use to dial out. This interface can be used as a backup WAN
interface, for example. The auxiliary interface controls the AUX port.
• Trunks manage load balancing between interfaces.
Port groups, trunks, and the auxiliary interface have a lot of characteristics that
are specific to each type of interface. See Section 13.2 on page 301, Chapter 14
on page 373, and Section 13.10 on page 363 for details. The other types of
interfaces--Ethernet, PPP, cellular, VLAN, bridge, and virtual--have a lot of similar
characteristics. These characteristics are listed in the following table and discussed
in more detail below.
- * 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, opt, lan1, lan2, ext-wlan,
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.
Table 59 Ethernet, PPP, Cellular, VLAN, Bridge, and Virtual Interface Characteristics
CHARACTERISTICS ETHERNET ETHERNET ETHERNET PPP CELLULAR VLAN BRIDGE VIRTUAL
Name* opt wan1,
wan2
lan1, lan2,
ext-wlan,
dmz
ppp
x
cellularx vlanx brx **
Configurable Zone YesNoNoNoNoYes Yes No
IP Address
Assignment
Static IP address Yes Yes Yes Yes Yes Yes Yes Yes
DHCP client
Yes Yes No Yes Yes Yes Yes No
Routing metric Yes Yes Yes Yes Yes Yes Yes Yes
Interface Parameters
Bandwidth
restrictions
Yes Yes Yes Yes Yes Yes Yes Yes
Packet size (MTU) Yes Yes Yes Yes Yes Yes Yes No
DHCP
DHCP server
Yes No Yes No No Yes Yes No
DHCP relay
Yes No Yes No No Yes Yes No
Connectivity Check
Yes Yes No Yes No Yes Yes No