D-Link DFL-900 User Manual page 130

Part V
Virtual Private Network
Step 3. Customize the rule
Similar to those in DFL-1, except that you should
interchange the Local IP Address with Remote
IP Address in the Condition part and the
Outgoing SPI with the Incoming SPI in the
Action part. Besides, set the Peer's IP
Address with the WAN1 IP address of DFL-1.
Step 4. Remind to add a Firewall rule
After finishing IPSec rule settings, we need to add
a firewall rule. Here system shows a window
message to remind you of adding a firewall rule.
Just press the OK button to add a firewall rule.
D-Link
ADVANCED SETTINGS > VPN Settings > IPSec > Manual Key > Add
ADVANCED SETTINGS > VPN Settings > IPSec > Manual Key > Add
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