PLANET CS-2001 - Manual (Page 352)

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Algorithm. （Figure 11-184）
Figure 11-184 IPSec Algorithm Settings
Step 16. Select “Group 1” for PFS Key Group. Enter “3600” in the ISAKMP
SA Lifetime field and “28800” in the IPSec SA Lifetime field and then
select “Main Mode” for Mode. （Figure 11-185）
Figure 11-185 Advanced Settings of IPSec Autokey
Step 17. For GRE Tunnel Settings, type “192.168.60.200” in the Local
Endpoint Address field and “192.168.60.100” in the Remote Endpoint
Address field. (Note: The local IP and the remote IP must be configured in
the same class C network.) （Figure 11-186）
Figure 11-186 GRE Tunnel Settings
Step 18. Settings completed.
（Figure 11-187）
Figure 11-187 IPSec Autokey Settings Completed