ZyXEL Communications VPN Series Handbook page 5

Set up the Failover Command Line (ZyWALL/USG HQ) .................. 238
Test the IPSec VPN Tunnel .................................................................. 239
What Could Go Wrong? .................................................................... 241
How to Configure L2TP over IPSec VPN while the ZyWALL/USG is behind
a NAT router............................................................................................... 243
Set Up the L2TP VPN Tunnel on the ZyWALL/USG_HQ ...................... 244
Set Up the NAT Router (Using ZyWALL USG device in this example)
.............................................................................................................. 248
Test the L2TP over IPSec VPN Tunnel .................................................. 251
What Could Go Wrong? .................................................................... 254
How to Configure L2TP VPN with Android 5.0 Mobile Devices ............. 256
Set Up the L2TP VPN Tunnel on the ZyWALL/USG ............................. 257
Set Up the L2TP VPN Tunnel on the Android Device ........................ 261
Test the L2TP over IPSec VPN Tunnel ................................................. 264
What Could Go Wrong? .................................................................... 266
How to Configure L2TP VPN with iOS 8.4 Mobile Devices ..................... 268
Set Up the L2TP VPN Tunnel on the ZyWALL/USG ............................. 268
Set Up the L2TP VPN Tunnel on the iOS Device ................................ 274
Test the L2TP over IPSec VPN Tunnel ................................................. 275
What Could Go Wrong? .................................................................... 278
How to Import ZyWALL/USG Certificate for L2TP over IPsec in Windows 10
.................................................................................................................... 280
Set Up the L2TP VPN Tunnel on the ZyWALL/USG ............................. 280
Export a Certificate from ZyWALL/USG and Import it to Windows 10
Operating System ............................................................................... 285
Set Up the L2TP VPN Tunnel on the Windows 10 ............................... 290
Test the L2TP over IPSec VPN Tunnel ................................................. 294
What Could Go Wrong? .................................................................... 296
How to Import ZyWALL/USG Certificate for L2TP over IPsec in IOS mobile
phone......................................................................................................... 298
Set Up the L2TP VPN Tunnel on the ZyWALL/USG ............................. 298
Export a Certificate from ZyWALL/USG and Import it to iOS Mobile
Phone .................................................................................................. 303
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