NETGEAR FWG114P Router Manual PDF (Setup & Configuration Guide)

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NETGEAR VPN Configuration FVS318 or FVM318 with FQDN to FVS328

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Appendix H

NETGEAR VPN Configuration

FVS318 or FVM318 with FQDN to FVS328

This appendix provides a case study on how to configure a VPN tunnel between a NETGEAR

FVS318 or FVM318 to a FWG114P v2 using a Fully Qualified Domain Name (FQDN) to resolve

the public address of one or both routers. The configurations screens and settings for the FVS318

and FVM318 are the same.

Configuration Template

The configuration in this document follows the addressing and configuration mechanics defined

by the VPN Consortium. Gather all the necessary information before you begin the configuration

process. Verify whether the firmware is up to date, all of the addresses that will be necessary, and

all of the parameters that need to be set on both sides. Check that there are no firewall restrictions.

Table H-1.

Summary

VPN Consortium Scenario:

Scenario 1

Type of VPN

LAN-to-LAN or Gateway-to-Gateway (not PC/Client-to-Gateway)

Security Scheme:

IKE with Preshared Secret/Key (not Certificate-based)

Date Tested:

December 2003

Model/Firmware Tested:

NETGEAR-Gateway A

FVS318 firmware version A1.4 or 2.0; FVM318 firmware version 1.1

NETGEAR-Gateway B

FVS328 with firmware version 1.0 Release 00

IP Addressing:

NETGEAR-Gateway A

Fully Qualified Domain Name (FQDN)

NETGEAR-Gateway B

Static IP address

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Reference Manual for the ProSafe Wireless 802.11g

Firewall/Print Server Model FWG114P v2

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Figure H-1:

Addressing and Subnet Used for Examples

Using DDNS and Fully Qualified Domain Names (FQDN)

Many ISPs (Internet Service Providers) provide connectivity to their customers using dynamic

instead of static IP addressing. This means that a user’s IP address does not remain constant over

time, which presents a challenge for gateways attempting to establish VPN connectivity.

A Dynamic DNS (DDNS) service allows a user whose public IP address is dynamically assigned

to be located by a host or domain name. It provides a central public database where information

(such as e-mail addresses, host names and IP addresses) can be stored and retrieved. Now, a

gateway can be configured to use a 3

rd

party service in lieu of a permanent and unchanging IP

address to establish bi-directional VPN connectivity.

To use DDNS, you must register with a DDNS service provider. Example DDNS Service

Providers include:

Table H-1.

Example DDNS Service Providers

In this example, Gateway A is configured using an example FQDN provided by a DDNS Service

provider. In this case we established the hostname

netgear.dyndns.org

for Gateway A using the

DynDNS

www.dyndns.org

TZO.com

netgear.tzo.com

ngDDNS

ngddns.iego.net

Gateway A

22.23.24.25

FQDN

netgear.dydns.org

10.5.6.0/24

172.23.9.0/24

172.23.9.1

10.5.6.1

WAN IP

LAN IP

Gateway B

VPNC Example

Network Interface Addressing

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Reference Manual for the ProSafe Wireless 802.11g

Firewall/Print Server Model FWG114P v2

NETGEAR VPN Configuration FVS318 or FVM318 with FQDN to FVS328

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DynDNS service. Gateway B will use the DDNS Service Provider when establishing a VPN

tunnel.

In order to establish VPN connectivity Gateway A must be configured to use Dynamic DNS, and

Gateway B must be configured to use a DNS hostname to find Gateway A provided by a DDNS

Service Provider. Again, the following step-by-step procedures assume that you have already

registered with a DDNS Service Provider and have the configuration information necessary to set

up the gateways.

Step-By-Step Configuration of FVS318 or FVM318 Gateway A

1.

Log in to the FVS318 or FVM318 labeled Gateway A as in the illustration.

Out of the box, the FVS318 or FVM318 is set for its default LAN address of

http://192.168.0.1,

with its default user name of

admin

and default password of

password

.

For this example we will assume you have set the local LAN address as 10.5.6.1 for Gateway

A and have set your own password.

2.

Click

Dynamic DNS

on the left side of the Settings management GUI.

3.

Access the Web site of one of the dynamic DNS service providers whose names appear in the

‘Use a dynamic DNS service’ list, and register for an account.

For example, for dyndns.org, click the link or go to www.dyndns.org.

Figure H-2:

Dynamic DNS Setup menu

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4.

Select the

Use a dynamic DNS service

radio button for the service you are using. In this

example we are using www.DynDNS.org as the service provider.

–

Type the Host Name that your dynamic DNS service provider gave you.

The dynamic DNS service provider may call this the domain name. In this example we are

using dyndns.org as the domain suffix.

–

Type the User Name for your dynamic DNS account. In this example we used netgear as

the Host Name. This means that the complete FQDN we are using is netgear.dyndns.org

and the Host Name is “netgear.”

–

Type the Password (or key) for your dynamic DNS account.

5.

Click

Apply

to save your configuration.

6.

Click

VPN Settings

on the left side of the Settings management GUI.

Figure H-3:

NETGEAR FVS318 VPN Settings Pre-Configuration

7.

Click the radio button of first available VPN leg (all 8 links are available in the example).

Click

Edit

. This will take you to the VPN Settings – Main Mode Menu.

Note:

The router supports only basic DDNS and the login and password may not be

secure. If your ISP assigns a private WAN IP address, such as 192.168.x.x or 10.x.x.x,

the dynamic DNS service will not work because private addresses will not be routed on

the Internet.

Page 275 / 296

Reference Manual for the ProSafe Wireless 802.11g

Firewall/Print Server Model FWG114P v2

NETGEAR VPN Configuration FVS318 or FVM318 with FQDN to FVS328

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Figure H-4:

NETGEAR FVS318 VPN Settings (part 1) – Main Mode

–

In the Connection Name box, enter in a unique name for the VPN tunnel to be configured

between the NETGEAR devices. For this example we have used

toFVS328

.

–

Enter a Local IPSec Identifier

name for the NETGEAR FVS318 Gateway A. This name

must be entered in the other endpoint as Remote IPSec Identifier. In this example we used

netgear.dyndns.org

(the FQDN) as the local identifier.

–

Enter a Remote IPSec Identifier

name for the remote NETGEAR FVS328 Gateway B.

This name must be entered in the other endpoint as Local IPSec Identifier. In this example

we used

22.23.24.25

as the remote identifier.

–

Choose a subnet from local address from the “Tunnel can be accessed” from pull-down

menu.

–

Type the starting LAN IP Address of Gateway A (

10.5.6.1

in our example) in the Local IP

Local LAN start IP Address field.

–

Type the finishing LAN IP Address of Gateway A (

0.0.0.0

in our example) in the Local IP

Local LAN finish IP Address field.

–

Type the LAN Subnet Mask of Gateway A (

255.255.255.0

in our example) in the

Local

LAN IP Subnetmask field.

–

Choose a subnet from local address from the “Tunnel can access”

pull-down menu.

–

Type the starting LAN IP Address of Gateway B (

172.23.9.1

in our example) in the Local

IP Remote LAN Start IP Address field.

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