Zyxel ZyWALL-USG50 Router Manual PDF (Setup & Configuration Guide)

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Chapter 7 Tutorials

ZyWALL USG 50 User’s Guide

111

Click

Configuration > Network > Interface > Ethernet

and double-click the

wan1

interface’s entry. Select

Use Fixed IP Address

and configure the IP

address, subnet mask, and default gateway settings and click

OK

.

Figure 56

Configuration > Network > Interface > Ethernet > Edit wan1

7.1.2

Configure Port Roles

Here is how to convert port

P5

from the lan2 interface and add it to the dmz

interface.

1

Click

Configuration > Network > Interface > Role

.

2

Under

P5

select the

dmz (DMZ)

radio button and click

Apply

.

Figure 57

Configuration > Network > Interface > Port Roles Example

7.1.3

Configure the DMZ Interface for a Local Network

Here is how to set the

dmz

interface (created in the previous section) for a

separate local network. It uses 192.168.4.1 as its IP address and has a DHCP

server to distribute IP addresses to connected DHCP clients.

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1

Click

Configuration > Network > Interface > Ethernet

and double-click the

lan2

interface’s entry.

The

Interface Type

should be

internal

.

Set the

IP Address

to 192.168.4.1 and the

Subnet Mask

to 255.255.255.0.

Set

DHCP

to

DHCP Server

and click

OK

.

Figure 58

Configuration > Network > Interface > Ethernet > Edit lan2

7.1.4

Configure Zones

Do the following to create a VPN zone.

1

Click

Configuration > Network

>

Zone

and then the

Add

icon.

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2

Enter

VPN

as the name, select

WIZ_VPN_Connection

and move it to the

Member

box and click

OK

.

Figure 59

Configuration > Network > Zone > WAN Edit

7.2

How to Configure a Cellular Interface

Use 3G cards for cellular WAN (Internet) connections.

Table 241 on page 775

lists

the compatible 3G devices. In this example you connect the 3G USB card before

you configure the cellular interfaces but is also possible to reverse the sequence.

1

Make sure the 3G device’s SIM card is installed.

2

Connect the 3G device to one of the ZyWALL’s USB ports.

3

Click

Configuration > Network > Interface > Cellular

. Select the 3G device’s

entry and click

Edit

.

Figure 60

Configuration > Network > Interface > Cellular

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4

Enable the interface and add it to a zone. It is highly recommended that you set

the

Zone

to

WAN

to apply your WAN zone security settings to this 3G connection.

Leaving

Zone

set to

none

has the ZyWALL not apply any security settings to the

3G connection. Enter the

PIN Code

provided by the cellular 3G service provider

(0000 in this example).

Figure 61

Configuration > Network > Interface > Cellular > Edit

Note: The

Network Selection

is set to

Auto

by default. This means that the 3G USB

modem may connect to another 3G network when your service provider is not

in range or when necessary. Select

Home

to have the 3G device connect only

to your home network or local service provider. This prevents you from being

charged using the rate of a different ISP.

5

Go to the

Dashboard

. The

Interface Status Summary

section should contain a

“cellular” entry. When its connection status is

Connected

you can use the 3G

connection to access the Internet.

Figure 62

Status

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6

The ZyWALL automatically adds the cellular interface to the system default WAN

trunk. If the ZyWALL is using a user-configured trunk as its default trunk and you

want this cellular interface to be part of it, use the

Trunk

screens to add it.

This way the ZyWALL can automatically balance the traffic load amongst the

available WAN connections to enhance overall network throughput. Plus, if a WAN

connection goes down, the ZyWALL still sends traffic through the remaining WAN

connections. For a simple test, disconnect all of the ZyWALL’s wired WAN

connections. If you can still access the Internet, your cellular interface is properly

configured and your cellular device is working.

To fine-tune the load balancing configuration, see

Chapter 12 on page 271

. See

also

Section 7.3 on page 115

for an example.

7.3

How to Configure Load Balancing

This example shows how to configure a trunk for two WAN connections (to the

Internet). The available bandwidth for the connections is 1Mbps (

wan1

) and 512

Kbps (

wan2

) respectively. As these connections have different bandwidth, use the

Weighted Round Robin

algorithm to send traffic to wan1 and wan2 in a 2:1

ratio.

Figure 63

Trunk Example

You do not have to change many of the ZyWALL’s settings from the defaults to set

up this trunk. You only have to set up the outgoing bandwidth on each of the WAN

interfaces and configure the WAN_TRUNK trunk’s load balancing settings.

7.3.1

Set Up Available Bandwidth on Ethernet Interfaces

Here is how to set a limit on how much traffic the ZyWALL tries to send out

through each WAN interface.

wan1: 1 Mbps

wan2: 512 Kbps

Rate

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