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Table of Content
How to Configure Site-to-site IPSec VPN with Amazon VPC .................. 19
Set Up the IPSec VPN Tunnel on the Amazon VPC ............................ 20
Set Up the IPSec VPN Tunnel on the ZyWALL/USG ............................. 24
Test the IPSec VPN Tunnel .................................................................... 30
What Could Go Wrong? ...................................................................... 31
How to Configure Site-to-site IPSec VPN with Microsoft (MS) Azure ...... 32
Set Up the IPSec VPN Tunnel on the ZyWALL/USG ............................. 33
Set Up the IPSec VPN Tunnel on the MS Azure ................................... 38
Test the IPSec VPN Tunnel .................................................................... 45
What Could Go Wrong? ...................................................................... 48
How to Configure GRE over IPSec VPN Tunnel......................................... 49
Set Up the ZyWALL/USG GRE over IPSec VPN Tunnel of Corporate
Network (HQ) ........................................................................................ 50
Set Up the ZyWALL/USG GRE over IPSec VPN Tunnel of Corporate
Network (Branch) ................................................................................. 55
Test the GRE over IPSec VPN Tunnel .................................................... 59
What Could Go Wrong? ...................................................................... 60
How to Configure Site-to-site IPSec VPN Where the Peer has a Static IP
Address ........................................................................................................ 62
Set Up the ZyWALL/USG IPSec VPN Tunnel of Corporate Network
(Branch) ................................................................................................. 67
Test the IPSec VPN Tunnel .................................................................... 71
What Could Go Wrong? ...................................................................... 72
How to Configure Site-to-site IPSec VPN Where the Peer has a Dynamic
IP Address .................................................................................................... 74
Set Up the ZyWALL/USG IPSec VPN Tunnel of Corporate Network
(HQ) ....................................................................................................... 74
Set Up the ZyWALL/USG IPSec VPN Tunnel of Corporate Network
(Branch has a Dynamic IP Address) ................................................... 78
Test the IPSec VPN Tunnel .................................................................... 82