Contents
10 Fortinet Inc.
IPSec VPN........................................................................................................... 209
Key management............................................................................................................ 210
Manual Keys ............................................................................................................... 210
Automatic Internet Key Exchange (AutoIKE) with pre-shared keys or certificates ..... 210
Manual key IPSec VPNs................................................................................................. 211
General configuration steps for a manual key VPN .................................................... 211
Adding a manual key VPN tunnel ............................................................................... 211
AutoIKE IPSec VPNs...................................................................................................... 213
General configuration steps for an AutoIKE VPN ....................................................... 213
Adding a phase 1 configuration for an AutoIKE VPN.................................................. 213
Adding a phase 2 configuration for an AutoIKE VPN.................................................. 217
Managing digital certificates............................................................................................ 219
Obtaining a signed local certificate ............................................................................. 219
Obtaining a CA certificate ........................................................................................... 223
Configuring encrypt policies............................................................................................ 224
Adding a source address ............................................................................................ 225
Adding a destination address...................................................................................... 225
Adding an encrypt policy............................................................................................. 225
IPSec VPN concentrators ............................................................................................... 227
VPN concentrator (hub) general configuration steps .................................................. 227
Adding a VPN concentrator ........................................................................................ 229
VPN spoke general configuration steps...................................................................... 230
Redundant IPSec VPNs.................................................................................................. 231
Configuring redundant IPSec VPN ............................................................................. 231
Monitoring and Troubleshooting VPNs ........................................................................... 233
Viewing VPN tunnel status.......................................................................................... 233
Viewing dialup VPN connection status ....................................................................... 233
Testing a VPN............................................................................................................. 234
PPTP and L2TP VPN .......................................................................................... 235
Configuring PPTP ........................................................................................................... 235
Configuring the FortiGate unit as a PPTP gateway .................................................... 236
Configuring a Windows 98 client for PPTP ................................................................. 238
Configuring a Windows 2000 client for PPTP ............................................................. 239
Configuring a Windows XP client for PPTP ................................................................ 240
Configuring L2TP............................................................................................................ 241
Configuring the FortiGate unit as a L2TP gateway ..................................................... 242
Configuring a Windows 2000 client for L2TP.............................................................. 245
Configuring a Windows XP client for L2TP ................................................................. 246
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