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

ETHERNET

VLAN

BRIDGE

PPPOE/PPTP

VIRTUAL

Name*

gex

vlanx

brx

pppx

**

 

 

 

 

 

 

IP Address Assignment

 

 

 

 

 

 

 

 

 

 

 

static IP address

Yes

Yes

Yes

Yes

Yes

 

 

 

 

 

 

DHCP client

Yes

Yes

Yes

Yes

No

 

 

 

 

 

 

routing metric

Yes

Yes

Yes

Yes

Yes

 

 

 

 

 

 

Interface Parameters

 

 

 

 

 

 

 

 

 

 

 

bandwidth restrictions

Yes

Yes

Yes

Yes

Yes

 

 

 

 

 

 

packet size (MTU)

Yes

Yes

Yes

Yes

No

 

 

 

 

 

 

data size (MSS)

Yes

Yes

Yes

Yes

No

 

 

 

 

 

 

traffic prioritization

Yes

Yes

Yes

Yes

No

 

 

 

 

 

 

DHCP

 

 

 

 

 

 

 

 

 

 

 

DHCP server

Yes

Yes

Yes

No

No

 

 

 

 

 

 

DHCP relay

Yes

Yes

Yes

No

No

 

 

 

 

 

 

Ping Check

Yes

Yes

Yes

Yes

No

 

 

 

 

 

 

*- 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

ETHERNET

ETHERNET

ETHERNET

VLAN

BRIDGE

PPP

VIRTUAL

Name*

opt

wan1, wan2

lan1, ext-

vlanx

brx

pppx

**

 

 

 

wlan, dmz

 

 

 

 

 

 

 

 

 

 

 

 

Configurable Zone

Yes

No

No

Yes

Yes

No

No

 

 

 

 

 

 

 

 

IP Address Assignment

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Static IP address

Yes

Yes

Yes

Yes

Yes

Yes

Yes

 

 

 

 

 

 

 

 

DHCP client

Yes

Yes

No

Yes

Yes

Yes

No

 

 

 

 

 

 

 

 

Routing metric

Yes

Yes

Yes

Yes

Yes

Yes

Yes

 

 

 

 

 

 

 

 

Interface Parameters

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Bandwidth

Yes

Yes

Yes

Yes

Yes

Yes

Yes

restrictions

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

54

 

ZyWALL (ZLD) CLI Reference Guide