ZyXEL Communications ZyWall Reference Manual page 54

Chapter 6 Interfaces
• 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 DIAL BACKUP port (labeled AUX on some models).
• 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. These characteristics are listed in the following tables and discussed in more
detail farther on.
Table 11 Characteristics of Ethernet, VLAN, Bridge, PPPoE/PPTP, and Virtual Interface (ZyWALL
USG 300 and Above)
CHARACTERISTICS
Name*
IP Address Assignment
static IP address
DHCP client
routing metric
Interface Parameters
bandwidth restrictions
packet size (MTU)
data size (MSS)
traffic prioritization
DHCP
DHCP server
DHCP relay
Ping Check
* - The format of interface names is strict. Each name consists of 2-4 letters (interface type), followed by a number (x,
limited by the maximum number of each type of interface). For example, Ethernet interface names are ge1, ge2,
ge3, ...; 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 ge1 are called ge1:1, ge1:2, 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 Parameters
Table 12 Ethernet, VLAN, Bridge, PPP, and Virtual Interface Characteristics (ZyWALL USG 200 and
Below Models)
CHARACTERISTICS
Name*
Configurable Zone
IP Address Assignment
Static IP address
DHCP client
Routing metric
Interface Parameters
Bandwidth
restrictions
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ETHERNET VLAN
gex vlanx
Yes Yes
Yes Yes
Yes Yes
Yes Yes
Yes Yes
Yes Yes
Yes Yes
Yes Yes
Yes Yes
Yes Yes
ETHERNET ETHERNET
opt wan1, wan2
Yes No
Yes Yes
Yes Yes
Yes Yes
Yes Yes
BRIDGE PPPOE/PPTP VIRTUAL
brx pppx
Yes Yes
Yes Yes
Yes Yes
Yes Yes
Yes Yes
Yes Yes
Yes Yes
Yes No
Yes No
Yes Yes
ETHERNET VLAN BRIDGE
lan1, ext- vlanx brx
wlan, dmz
No Yes Yes
Yes Yes Yes
No Yes Yes
Yes Yes Yes
Yes Yes Yes
ZyWALL (ZLD) CLI Reference Guide
**
Yes
No
Yes
Yes
No
No
No
No
No
No
PPP VIRTUAL
pppx **
No No
Yes Yes
Yes No
Yes Yes
Yes Yes