D-Link DFL-300 - Security Appliance Manuale utente

Review Package Contents

Make sure that the package contains the following items. If

any items are missing, contact the reseller.

§DFL-300 Firewall

§Manual

§Quick Install Guide

§AC Power Adapter

Connecting the DFL-300

Connecting the DFL-300 continued…

To setup the DFL-300, begin by connecting the AC adapter to a power source.

The Power LED on the front of the DFL-300 should now be on.

Connect one end of the Ethernet cable to the Internal/LAN port of the

DFL-300 and the other end of the cable into a hub or switch on your network.

If the cable connection is good, a green LED on the front of the DFL-300

should come on for Internal Link.

Now with another Ethernet cable, connect one end to the External/WAN port

of the DFL-300 and the other end to your Broadband modem. The External

Link LED on the front should now also come on.

Setting Up the Computer

By default, the DFL-300 firewall is a DHCP Server. You can set your

computer to obtain an IP address. Follow the below steps to do so. If you

prefer, you can set your computer up with a static IP address in the range of

192.168.1.2 ~ 192.168.1.254.

Right-Click the Network

Neighborhood(Win 98/98SE)

or My Network Places (Win ME/2K/XP)

icon on your desktop.

Select properties

-2-

Setting Up the Computer continued…

Highlight the TCP/IPsetting for the

installed Ethernet Network Adapter.

Click Properties

At this screen, select the

IP address tab. Select

Obtain an IP Address

Automatically.

Click OK

If you are prompted to restart your computer, please do so. When the

computer restarts, it will automatically receive an IP address from the

DFL-300 firewall.

-3-

Configuring the DFL-300

Note: The DFL-300 requires Internet Explorer 4.0 or higher, or

Netscape Communicator 4.0 or higher.

Please open your Web Browser and enter this URL:

http://192.168.1.1

This will launch the DFL-300’s

integrated web-based

management system.

This Enter Network Password

pop-up screen will appear.

The default User Name is admin

and the default Password is also

admin. Click OK

Once the D-Link DFL-300 screen appears, click

Configuration on the left side menu. Then click Interface

below it. (See left)

You will now need to choose the External Interface option

that your Broadband connection uses.

-4-

Configuring the DFL-300 continued…

If your ISP requires you to enter a username/password for a PPPoE

connection, choose PPPoE (ADSL User)

Fill in your PPPoE username and password provided by your ISP. Click Ok

at the bottom when done.

-5-

Configuring the DFL-300 continued…

If your ISP assigns you a dynamic IP address, choose Dynamic IP Address

(Cable Modem User)

Fill in the Hostname if provided by your ISP.

Click Ok at the bottom when done.

-6-

Configuring the DFL-300 continued…

If your ISP assigns you a static IP address, choose Static IP Address

Fill in the static IP information provided by your ISP. Click Ok at the

bottom when done.

Now set up the Outgoing Policy. Click on Policy on the left

menu. Then click Outgoing below it.

-7-

Configuring the DFL-300 continued…

Click on New Entry and enter the following:

Source Address:

Inside_Any

Destination Address:

Outside_Any

Service:Any

Action: Permit

Click Ok

There should now be an Outgoing Policy created. This policy will allow all

computers in the Internal network to access the Internet.

Note: You do not need to manually restart the DFL-300 Firewall. The changes

will take place immediately once you click Ok. Once you are finished with

the installation, you should be able to access the Internet.

-8-

Creating a VPN IPSec Tunnel

This example will demonstrate how to create a Virtual Private Network (VPN)

between two remote locations through the Internet. The VPN policy will use

IPSec to securely send/receive encrypted data over the Internet. This example

will consist of two DFL-300 Office Firewalls with a simple setup to enable

VPN.

The two remote locations in this example will be call Site A and Site B.

Both firewalls must already be set up and able to access each other.

-9-

Please note the differences in the IP addresses for each site.

Appendix

We will begin by configuring the DFL-300 at Site A . Start by going into the

web configuration. Once in, go to the VPN menu. You should now be under

VPN>Autokey IKE.

Click New Entry

Please fill in the appropriate information for Site A.

Name:Site_A

From Source:Internal

Subnet/Mask:

192.168.10.0/255.255.255.0

Remote Gateway –Fixed

IP: 192.170.0.200

Subnet/Mask:

192.168.20.0/255.255.255.0

Authentication Method:

Preshare

Preshare Key: 123456

Encapsulation: Encryption

(ESP)

Click OK

Note: 123456 is an example of a preshare key, please fill in any secret preshare key you desire.

Keep in mind that both sites require the same preshare key.

-10-

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