Getting Started

26

Alternatively, to activate your CyberGuard SG appliance's DHCP server:

Launch Internet Explorer (or your preferred web browser) and navigate to the IP

address of the CyberGuard SG appliance’s LAN connection.

The Web Management Console will display.

Select

DHCP Server

from the

Networking

menu.

Click

Add Server

and configure the DHCP server with the following details:

•

Gateway Address

is the IP address of the CyberGuard SG appliance’s

LAN connection, or leave it blank.

•

DNS Address

is the IP address of the CyberGuard SG appliance’s LAN

connection, or leave it blank.

•

WINS Address

(optional) is the IP address of any existing WINS server

on your LAN.

•

Default Lease Time and Maximum Lease Time

should generally be left

at their default values.

•

Initial Dynamic IP Address Range

is a range of free IP addresses on

your LAN’s subnet for the CyberGuard SG appliance to hand out to PCs

on your LAN.

Note

For a detailed description of configuring DHCP Server Settings, please refer to

the User Manual.

Each PC on your LAN must now be set up to use DHCP.

For each PC on your

LAN:

Click

Start

->

(

Settings

->)

Control Panel

and double click

Network

Connections

(or in 95/98/Me, double click

Network

).

If presented with multiple connections, right click on

Local Area Connection

(or

appropriate network connection) and select

Properties

.

Getting Started

27

Select

Internet Protocol (TCP/IP)

and click

Properties

(or in 95/98/Me,

TCP/IP

->

[your network card name]

if there are multiple entries) and click

Properties

(in 95/98/Me, you may also have to click the

IP Address

tab).

Figure 2-6

Check

Obtain an IP address automatically

, check

Obtain DNS server address

automatically

and click

OK

(in 95/98/Me, reboot the PC if prompted to do so).

You are now finished.

Getting Started

28

CyberGuard SG Rack Mount Appliances

Set up a PC to Connect to the Web Management Console

The CyberGuard SG appliance ships with initial, static IP settings of:

IP address:

192.168.0.1

Subnet mask:

255.255.255.0

Note

Initial configuration is performed through a port on network switch

A

(

A1

–

A4

).

All other

interfaces are by default inactive, i.e. there are no network services such as DHCP in

operation, and no IP address is configured.

If you attach

A1

–

A4

directly to a LAN with an existing DHCP server, or a PC running a

DHCP service, before performing the initial setup steps described below, it will

automatically obtain an additional address.

Your CyberGuard SG appliance will still be

reachable at 192.168.0.1.

The address you use when navigating to the unit (as described

Set up the CyberGuard

SG appliance's password and LAN connection settings

) will be used as the CyberGuard

SG unit’s LAN interface address and the other will be discarded.

Your CyberGuard SG appliance will need an IP address suitable for your LAN before it is

connected.

You may choose to use the CyberGuard SG appliance’s initial network

settings as a basis for your LAN settings.

Connect the supplied power cable to the power inlet on the rear panel of the CyberGuard

SG appliance and turn on the rear panel power switch.

Connect one of the ports of network switch

A

(

A1

–

A4

) directly to your PC’s network

interface card using the straight through cable (blue).

Next, you must modify your PC’s network settings to enable it to communicate with the

CyberGuard SG appliance.

Getting Started

29

Note

It is recommended that you perform the initial setup steps with the CyberGuard SG

appliance connected to a single PC only.

However, you may choose to connect the

CyberGuard SG appliance to the LAN before completing the initial setup steps.

Before doing so, it is critical that you ensure there are no other devices on the LAN

with an address of 192.168.0.1

Use the straight through cable (blue) to connect the CyberGuard SG appliance to your

LAN’s hub.

Next, you must modify your PC’s network settings to enable it to communicate with the

CyberGuard SG appliance.

Click

Start

->

(

Settings

->)

Control

Panel

and double click

Network

Connections

(or

in 95/98/Me, double click

Network

).

Right click on

Local

Area

Connection

and select

Properties

.

Note

If there is more than one existing network connection, select the one corresponding to the

network interface card to which the CyberGuard SG appliance is directly attached.

Select

Internet Protocol (TCP/IP)

and click

Properties

(or in 95/98/Me,

TCP/IP

->

your network card name

if there are multiple entries) and click

Properties

.

Getting Started

30

Figure 2-7

Select

Use the following IP address

and enter the following details:

IP address:

192.168.0.100

Subnet mask:

255.255.255.0

Default gateway:

192.168.0.1

Select Use the following DNS server addresses and enter:

Preferred DNS server:

192.168.0.1

Note

If you wish to retain your existing IP settings for this network connection, click

Advanced

and

Add

the secondary IP address of

192.168.0.100

, subnet mask

255.255.255.0

.