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Page 151 / 167 Scroll up to view Page 146 - 150
Appendix B.
NETGEAR VPN Configuration
|
151
N300 Wireless ADSL2+ Modem Router DGN2200
Step 1: Configure Gateway A (the NETGEAR VPN Router at the
Main Office)
1.
Log in to the VPN router. Select
VPN Policies
to display the VPN Policies screen. Click
Add Auto Policy
to proceed and enter the information.
toGW_A.com
(in this example)
fromGW_A.com
(in this example)
fromGW_A
(in the example)
192.168.2.3
(in this example)
IKE Keep Alive
is optional; has to match
Remote LAN IP Address
when enabled
(remote PC has to respond to pings)
(Remote NAT router has to have
Address Reservation
set and
VPN Passthrough
enabled)
2.
Click
Apply
when you are finished to display the VPN Policies screen.
To view or modify the tunnel settings, select the radio button next to the tunnel entry, and then
click
Edit
.
Page 152 / 167
152
|
Appendix B.
NETGEAR VPN Configuration
N300 Wireless ADSL2+ Modem Router DGN2200
Step 2: Configure Gateway B (the Modem Router at the
Regional Office)
This procedure assumes that the PC running the client has a dynamically assigned IP
address.
The PC needs to have a VPN client program installed that supports IPSec (in this case study,
the NETGEAR VPN ProSafe Client is used). Go to the NETGEAR website
(
www.netgear.com
) for information about how to purchase the NETGEAR ProSafe VPN
Client.
Note:
Before installing the software, be sure to turn off any virus protection
or firewall software you might be running on your PC.
1.
Install the NETGEAR ProSafe VPN Client on the remote PC, and then reboot.
a.
You might need to insert your Windows CD to complete the installation.
b.
If you do not have a modem or dial-up adapter installed in your PC, you might see
the warning message stating “The NETGEAR ProSafe VPN Component requires at
least one dial-up adapter be installed.” You can disregard this message.
c.
Install the IPSec component. You might have the option to install either the VPN
adapter or the IPSec component or both. The VPN adapter is not necessary.
d.
The system should show the ProSafe icon (
) in the system tray after rebooting.
e.
Double-click the system tray icon to open the Security Policy Editor.
2.
Add a new connection.
a.
Run the NETGEAR ProSafe Security Policy Editor program, and create a VPN
Connection.
b.
From the Edit menu of the Security Policy Editor, select Add > Connection. A New
Connection listing appears in the list of policies.
c.
Rename the new connection to
match the connection name you
entered in the VPN settings of
Gateway A. Choose connection
names that make sense to the
people using and administrating the
VPN.
Note:
In this example, the connection
name on the client side of the VPN
tunnel is
toGW_A
. It does not have to
match the VPN_client connection
name used on the gateway side of the
VPN tunnel because connection
names do not affect how the VPN tunnel functions.
Page 153 / 167
Appendix B.
NETGEAR VPN Configuration
|
153
N300 Wireless ADSL2+ Modem Router DGN2200
d.
Select
Secure
in the Connection
Security section.
toGW_A
e.
Select
IP Subnet
in the
ID Type
drop-down list.
f.
In this example, type
192.168.0.1
in
the
Subnet
field as the network
address of the modem router.
g.
Enter
255.255.255.0
in the
Mask
field as the LAN subnet mask of the
modem router.
h.
Select
All
in the
Protocol
drop-down list to allow all traffic
through the VPN tunnel.
i.
Select the
Connect
using
Secure Gateway Tunnel
check box.
j.
Select
Domain Name
in the
ID Type
drop-down list, and enter
fromGW_A.com
(in
this example).
k.
Select
Gateway Hostname
and enter
ntgr.dyndns.org
(in this example).
3.
Configure the security policy in the modem router software.
a.
In the Network Security Policy list, expand the new connection by double-clicking its
name or clicking the + symbol. My Identity and Security Policy appear below the
connection name.
b.
Click
Security Policy
to show the Security Policy screen.
c.
Select the
Main Mode
radio button in the Select Phase 1 Negotiation Mode group.
4.
Configure the VPN client identity.
In this step, you provide information about the remote VPN client PC. You have to provide
the pre-shared key that you configured in the modem router and either a fixed IP address
or a fixed virtual IP address of the VPN client PC.
Page 154 / 167
154
|
Appendix B.
NETGEAR VPN Configuration
N300 Wireless ADSL2+ Modem Router DGN2200
a.
In the Network Security Policy list on the left side of the Security Policy Editor window,
click
My Identity
.
b.
Select
None
in the
Select Certificate
field.
c.
Select
Domain Name
in the
ID Type
field, and enter
toGW_A.com
(in this
example). Select
Disabled
in the
Virtual Adapter
field.
d.
In the Internet Interface section, select
Intel PRO/100VE Network Connection
(in
this example; your Ethernet adapter might be different) in the
Name
field, and then
enter
192.168.2.3
(in this example) in the
IP Addr
field.
e.
Click the
Pre-Shared Key
button.
f.
In the Pre-Shared Key screen, click
Enter
Key
. Enter the DGN2200’s pre-shared key
and click
OK
. In this example,
12345678
is
entered, though the screen shows asterisks.
This field is case-sensitive.
5.
Configure the
VPN Client Authentication
Proposal
.
In this step, you provide the type of encryption
(DES or 3DES) to be used for this connection. This selection has to match your selection
in the VPN router configuration.
a.
In the Network Security Policy list on the left side of the Security Policy Editor window,
expand the Security Policy heading by double-clicking its name or clicking the +
symbol.
Page 155 / 167
Appendix B.
NETGEAR VPN Configuration
|
155
N300 Wireless ADSL2+ Modem Router DGN2200
b.
Expand the Authentication
subheading by double-clicking its
name or clicking the + symbol.
Then select Proposal 1 below
Authentication.
c.
In the
Authentication Method
drop-down list, select
Pre-Shared
Key
.
d.
In the
Encrypt Alg
drop-down
list, select the type of encryption.
In this example, use
Triple DES
.
e.
In the
Hash Alg
drop-down list,
select
SHA-1
.
f.
In the
SA Life
drop-down list,
select
Unspecified
.
g.
In the
Key Group
drop-down list, select
Diffie-Hellman Group 2
.
6.
Configure the
VPN Client Key Exchange Proposal
.
In this step, you provide the type of encryption (
DES
or
3DES
) to be used for this
connection. This selection has to match your selection in the VPN router configuration.
a.
Expand the Key Exchange
subheading by double-clicking its
name or clicking the + symbol.
Then select Proposal 1 below Key
Exchange.
b.
In the
SA Life
drop-down list,
select
Unspecified
.
c.
In the
Compression
drop-down
list, select
None
.
d.
Select the
Encapsulation
Protocol (ESP)
check box.
e.
In the
Encrypt Alg
drop-down
list, select the type of encryption.
In this example, use
Triple DES
.
f.
In the
Hash Alg
drop-down list, select
SHA-1
.
g.
In the
Encapsulation
drop-down list, select
Tunnel
.
h.
Leave the
Authentication Protocol (AH)
check box cleared.
7.
Save the VPN Client settings.
From the File menu at the top of the Security Policy Editor window, select
Save
.
After you have configured and saved the VPN client information, your PC automatically
opens the VPN connection when you attempt to access any IP addresses in the range of
the remote VPN router’s LAN.
8.
Check the VPN connection.

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