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Table of Content
How to Configure Site-to-site IPSec VPN with Amazon VPC .................. 20
Set Up the IPSec VPN Tunnel on the Amazon VPC ............................ 21
Set Up the IPSec VPN Tunnel on the ZyWALL/USG ............................. 25
Test the IPSec VPN Tunnel ..................................................................... 31
What Could Go Wrong? ....................................................................... 32
How to Configure Site-to-site IPSec VPN with Microsoft (MS) Azure ..... 33
Set Up the IPSec VPN Tunnel on the ZyWALL/USG ............................. 34
Set Up the IPSec VPN Tunnel on the MS Azure ................................... 39
Test the IPSec VPN Tunnel ..................................................................... 46
What Could Go Wrong? ...................................................................... 49
How to Configure GRE over IPSec VPN Tunnel ........................................ 50
Set Up the ZyWALL/USG GRE over IPSec VPN Tunnel of Corporate
Network (HQ) ......................................................................................... 51
Set Up the ZyWALL/USG GRE over IPSec VPN Tunnel of Corporate
Network (Branch) .................................................................................. 56
Test the GRE over IPSec VPN Tunnel .................................................... 60
What Could Go Wrong? ....................................................................... 61
How to Configure Site-to-site IPSec VPN Where the Peer has a Static IP
Address ....................................................................................................... 63
Set Up the ZyWALL/USG IPSec VPN Tunnel of Corporate Network
(Branch) .................................................................................................. 68
Test the IPSec VPN Tunnel ..................................................................... 72
What Could Go Wrong? ...................................................................... 73
How to Configure Site-to-site IPSec VPN Where the Peer has a Dynamic
IP Address ................................................................................................... 75
Set Up the ZyWALL/USG IPSec VPN Tunnel of Corporate Network
(HQ) ........................................................................................................ 75
Set Up the ZyWALL/USG IPSec VPN Tunnel of Corporate Network
(Branch has a Dynamic IP Address) ................................................... 79
Test the IPSec VPN Tunnel ..................................................................... 83