Test the IPSec VPN Tunnel .................................................................. 156
What Could Go Wrong? .................................................................... 159
How to Configure IPSec VPN with ZyWALL IPSec VPN Client ................ 160
Set Up the ZyWALL/USG IPSec VPN Tunnel ....................................... 161
Set Up the ZyWALL IPSec VPN Client ................................................. 165
Test the IPSec VPN Tunnel .................................................................. 168
What Can Go Wrong? ....................................................................... 170
How to Configure Site-to-site IPSec VPN with FortiGate ....................... 172
Set Up the IPSec VPN Tunnel on the ZyWALL/USG ........................... 173
Set Up the IPSec VPN Tunnel on the FortiGate ................................ 176
Test the IPSec VPN Tunnel .................................................................. 181
What Could Go Wrong? .................................................................... 182
How to Configure Site-to-site IPSec VPN with WatchGuard ................. 184
Set Up the IPSec VPN Tunnel on the ZyWALL/USG ........................... 185
Set Up the IPSec VPN Tunnel on the WatchGuard .......................... 188
Test the IPSec VPN Tunnel .................................................................. 194
What Could Go Wrong? .................................................................... 195
How to Configure Site-to-site IPSec VPN with Cisco ............................. 197
Set Up the IPSec VPN Tunnel on the ZyWALL/USG ........................... 198
Set Up the IPSec VPN Tunnel on the Cisco ....................................... 203
Test the IPSec VPN Tunnel .................................................................. 208
What Could Go Wrong? .................................................................... 210
How to Configure Site-to-site IPSec VPN with a SonicWALL router ...... 211
Set Up the IPSec VPN Tunnel on the ZyWALL/USG ........................... 212
Set Up the IPSec VPN Tunnel on the SonicWALL .............................. 219
Test the IPSec VPN Tunnel .................................................................. 223
What Could Go Wrong? .................................................................... 225
How to Configure IPSec VPN Failover ..................................................... 228
Set Up the ZyWALL/USG IPSec VPN Tunnel of Corporate Network
(HQ) ..................................................................................................... 229
Set Up the ZyWALL/USG IPSec VPN Tunnel of Corporate Network
(Branch) ............................................................................................... 232
Set up the WAN Trunk (ZyWALL/USG_HQ) ........................................ 237