Chapter 7 Tutorials

7.5How to Configure a Hub-and-spoke IPSec VPN Without a VPN Concentrator

A hub-and-spoke IPSec VPN connects IPSec VPN tunnels to form one secure network. This reduces the number of VPN connections that you have to set up and maintain in the network. Here is an example of a hub-and-spoke VPN that does not use the ZyWALL’s VPN concentrator feature. Here branch office A has a ZyNOS-based ZyWALL and headquarters (HQ) and branch office B have USG ZyWALLs.

•Branch office A’s ZyWALL uses one VPN rule to access both the headquarters (HQ) network and branch office B’s network.

•Branch office B’s ZyWALL uses one VPN rule to access both the headquarters and branch office A’s networks.

Figure 83 Hub-and-spoke VPN Example

This hub-and-spoke VPN example uses the following settings.

Branch Office A (ZyNOS-based ZyWALL):

Gateway Policy (Phase 1)

•My Address: 10.0.0.2

•Primary Remote Gateway: 10.0.0.1

Network Policy (Phase 2)

•Local Network: 192.168.167.0/255.255.255.0

•Remote Network: 192.168.168.0~192.168.169.255

Headquarters (ZyWALL USG):

VPN Gateway (VPN Tunnel 1):

 

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ZyWALL USG 2000 User’s Guide