14 Working with VPNs
188 Nokia IP40 Security Platform User’s Guide v1.1
Figure 8 Nokia IP40 Satellite X to Nokia IP40 Satellite X
Setting Up Nokia IP40 Satellite X
Configure a VPN tunnel between two Nokia IP40 Satellite X devices (site-to-site VPN).
To set up the IP40 Satellite X
1. Specify the IP address of Nokia IP40 Satellite X on the remote Nokia IP40 Satellite X.
2. Enter the shared secret (a password that is known to both the IP40 Satellite X devices).
To set up the remote Nokia IP40 Satellite X
1. Specify the IP address of your IP40 Satellite X.
Enter the shared secret (a password that is known to both the IP40 Satellite X devices.)
Nokia IP40 Satellite X in NAT and No-NAT Modes
VPN configuration allows you to choose how your VPN should function. Use of NAT and No-
NAT modes offer great flexibility.
NAT mode allows you to define VPNs at peer gateway sites without knowing the protected
network behind the IP40 devices.
To access a resource that is protected by a VPN in NAT mode, you must contact the hiding
(Internet) address of the VPN gateway. Your request is then forwarded to the correct computer
in the protected network according to the defined security rules.
To access a resource that is protected by a VPN in No-NAT mode, you must contact the IP
address of the final computer in the destination network that you want to reach.
Note
You can establish VPN tunnels between a combination of NAT and No-NAT devices. This
possibility is not discussed in this guide.
Satellite
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