Cirkuit Planet MH-1000 Manuale Utente

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Multi-Homing Security Gateway User’s Manual 
2.6 Virtual Private Networking 
A Virtual Private Network (VPN) enables you to send data between two computers across a shared or 
public network in a manner that emulates the properties of a point-to-point private link. As such, it is perfect 
for connecting branch offices to headquarters across the Internet in a secure fashion. 
The following section discusses Virtual Private Networking with MH-1000. 
2.6.1 General VPN Setup 
There are typically three different VPN scenarios. The first is a Gateway to Gateway setup, where two 
remote gateways communicate over the Internet via a secure tunnel. 
 
 
The next type of VPN setup is the Gateway to Multiple Gateway setup, where one gateway 
(Headquarters) is communicating with multiple gateways (Branch Offices) over the Internet. As with all 
VPNs, data is kept secure with secure tunnels. 
 
 
The final type of VPN setup is the Client to Gateway. A good example of where this can be applied is 
when a remote sales person accesses the corporate network over a secure VPN tunnel. 
 
100.100.100.
myID.dyndns.org 
192.168.2.x 
Secure Tunnel
VPN Client 
100.100.100.1
200.200.200.1
192.168.2.x 
192.168.3.x
Secure Tunnel 
201.201.201.1
192.168.4.x
Secure Tunnel 
192.168.2.x 
192.168.3.x
Secure Tunnel 
100.100.100.1
200.200.200.1
 
 
 
 
 
 
 
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