ZyXEL Communications USG-100@USG-200 - V2.20 ED 2 - Page 504

Chapter 25 IPSec VPN
ZyWALL USG 100/200 Series User’s Guide
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• 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 branch office A’s network
only. Branch office B is not permitted to access the headquarters network.
Figure 361 IPSec VPN Concentrator Example
This IPSec VPN concentrator example uses the following settings.
Branch Office A (ZyNOS-based ZyWALL):
VPN Gateway (VPN Tunnel 1):
• My Address: 10.0.0.2
• Peer Gateway Address: 10.0.0.1
VPN Connection (VPN Tunnel 1):
• Local Policy:192.168.11.0/255.255.255.0
• Remote Policy: 192.168.1.0/255.255.255.0
• Disable Policy Enforcement
Policy Route
• Source: 192.168.11.0
• Destination: 192.168.12.0
• Next Hop: VPN Tunnel 1
Headquarters (USG ZyWALL or ZyWALL 1050):
VPN Gateway (VPN Tunnel 1):
• My Address: 10.0.0.1
• Peer Gateway Address: 10.0.0.2