Allied Telesis AR44xS User Manual

Browse online or download User Manual for Network switches Allied Telesis AR44xS. Create A VPN Between An Allied Telesis Router And A Microsoft

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C613-16003-00 REV C
www.alliedtelesis.com
How To |
Create A VPN Between An Allied Telesis Router
And A Microsoft Windows XP
1
Client,
Without Using NAT-T
1. Internet Explorer and Windows are registered trademarks of Microsoft
Corporation in the United States and other countries.
Introduction
This document describes how to provide secure remote access through IP security (IPSec)
Virtual Private Networks (VPN).
This VPN solution provides your office with secure internet access and firewall protection, plus
remote encrypted VPN access for staff who work from home.
You should use the companion Note How To Create A VPN Between An Allied Telesis Router And A
Microsoft Windows XP Client, Using NAT-T instead, if:
z the Allied Telesis router is connected to the Internet through a NAT gateway device, such as
an ADSL modem, and/or
z you want to let travelling staff connect to your office from such places as hotel rooms.
This companion How To Note is available from www.alliedtelesis.com/resources/literature/
howto.aspx.
Consider the following typical scenario:
You are the manager of a small business and you have purchased an AR415S for your small office
premises. You have five PCs networked together with a server in your office. You intend to use
your AR415S as your Internet gateway and for it to provide firewall protection.
You also have people who sometimes work from home. You would like these staff members to
have secure (encrypted) remote access through the Internet to the servers in your office, to
allow them to access files, the private Intranet, and business email.
Each staff member has a laptop or PC with Windows XP installed.
This document describes how to configure the Windows system to use IPSec VPN to connect
to your office through the AR415S router.
When your staff want to connect to the office they simply use the VPN icon on their desktop to
initiate the IPSec VPN connection.
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Summary of Contents

Page 1 - Without Using NAT-T

C613-16003-00 REV Cwww.alliedtelesis.comHow To |Create A VPN Between An Allied Telesis Router And A Microsoft Windows XP1 Client, Without Using NAT-T1

Page 2 - Related How To Notes

Configuring the VPN client > Create a VPN tunnel from the PC host to the router102. Click Network and Internet Connections > Create a connec

Page 3 - Security issue

Configuring the VPN client > Create a VPN tunnel from the PC host to the router114. Click Next. Assign an associated dialled call or select Do

Page 4 - Example network

Configuring the VPN client > Connect to the Head Office126. Click Next.You have now completed creating the connection, as shown in the followin

Page 5 - Configuring the router

Configuring the VPN client > Connect to the Head Office133. Click Properties.This opens the Head Office Properties window. Click the Security T

Page 6 - The configuration script

Configuring the VPN client > Connect to the Head Office146. Click the Networking Tab, as shown in the following figure. In the Type of VPN drop

Page 7

Testing the tunnel > Checking the connection from the Windows client15Testing the tunnelThe simplest way to tell if traffic is passing through

Page 8

USA Headquar ters | 19800 Nor th Cr eek Parkwa y | Suite 200 | Bothell | WA 98011 | USA | T: +1 800 424 4284 | F: +1 425 481 3895

Page 9 - Configuring the VPN client

Which products and releases does it apply to?2Which products and releases does it apply to?The following Allied Telesis routers are most suitable

Page 10

Security issue3z How To Use The Allied Telesis GUI Wizard To Create A Site-to-Site VPN(Use this Note when the VPN does not go through a NAT gatew

Page 11

Example network 4Example networkThe following figure shows an example of a network that could use this configuration.Office PCsSmall Officeremote

Page 12 - Connect to the Head Office

Configuring the router > Perform initial security configuration on the router5Configuring the routerThis section contains a script file for run

Page 13

Configuring the router > The configuration script6The configuration scriptNote: Comments are indicated in the script below using the # symbol.

Page 14

Configuring the router > The configuration script7# Firewallenable firecreate fire poli=main create fire poli=main dy=dynamicadd fire poli=main

Page 15 - Troubleshooting

Configuring the router > Set the router to use the configuration8Set the router to use the configurationAfter loading the configuration onto th

Page 16 - Closing the connection

Configuring the VPN client > Create a VPN tunnel from the PC host to the router9Configuring the VPN clientConfiguring the Windows XP VPN client

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