ZyXEL Communications ZyWALL 310 - How to Create VTI and Configure VPN Failover with VTI; VTI Deployment Flow

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How to Create VTI and Configure VPN Failover with VTI
This example illustrates how to create a VTI object and configure a policy route
with the VTI. Furthermore, it applies the VTI to the WAN trunk to achieve VPN
load balancing.
Figure 1 VPN Load Balance with VTI
VTI Deployment Flow
1 Configure the VPN gateways.
2 Configure a VPN tunnel for each VPN gateway with the application
scenario VPN Tunnel Interface.
3 Create a VTI for each VPN tunnel.
4 Create a trunk with the VTIs.
5 Configure a policy route.
6 Connect the VPN tunnels.
Note: All network IP addresses and subnet masks are used as examples in this article.
Please replace them with your actual network IP addresses and subnet masks. This
example was tested using USG110 (Firmware Version: ZLD 4.20).