PLANET SG-500 - Manual (Page 218)

SG-500 VPN Security Gateway User’s Manual
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STEP 7 . In Perfect Forward Secrecy (NO-PFS/ GROUP 1, 2, 5), select GROUP 1. In ISKMP Lifetime,
enter 3600 seconds. In IPSec Lifetime, enter 28800 seconds. In Mode, select main mode.
The IPSec Perfect Forward Secrecy setting
STEP 8 . In GRE/IPSec Æ GRE Local IP, enter 192.168.50.100. In GRE Remote IP, enter 192.168.50.200
(The local IP and remote IP must be in the same subnet of C class).
The GRE/IPSec setting
STEP 9 . Complete the VPN_A setting in IPSec Autokey.
Complete the IPSec Autokey setting