ZyXEL Communications ZLD User Manual

 Chapter 6 Interfaces

ZyWALL (ZLD) CLI Reference Guide

* - 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, 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.

* - Each name consists of letters (interface type), followed by a number (x). For most interfaces, x is limited by the 

maximum number of the type of interface. For WLAN interfaces, the first number identifies the slot and the second 
number identifies the individual interface.

** - Cellular interfaces can be added to the WAN zone or no zone. 

Packet size (MTU)

Yes

Yes

Yes

Yes

Yes

Yes

No

Data size (MSS)

Yes

Yes

Yes

Yes

Yes

Yes

No

DHCP

DHCP server

Yes

No

Yes

Yes

Yes

No

No

DHCP relay

Yes

No

Yes

Yes

Yes

No

No

Connectivity Check

Yes

Yes

No

Yes

Yes

Yes

No

Cellular and WLAN Interface Characteristics

Name*

cellularx

wlan-x-x

Configurable Zone

Yes**

Yes

IP Address 
Assignment

Static IP address

Yes

Yes

DHCP client

Yes

No

Routing metric

Yes

No

Interface Parameters

Bandwidth 

restrictions

Yes

Yes

Packet size (MTU) Yes

Yes

Data size (MSS)

Yes

Yes

DHCP

DHCP server

No

Yes

DHCP relay

No

Yes

Connectivity Check

Yes

No

Ethernet, VLAN, Bridge, PPP, and Virtual Interface Characteristics (ZyWALL USG 200 and 

Below Models) (continued)