D-Link DFL-900 User Manual page 136

Part V
Virtual Private Network
Step 14. Customize the Firewall rule
Enter the Rule Name as AllowVPN, Source IP
as WAN1_VPNA (192.168.88.0), and Dest.
IP as LAN1_VPNA (192.168.40.0). Click
Apply to store this rule.
Step 15. View the result
Here we have a new rule before the default
firewall rule. This rule will allow packets from
192.168.88.0 / 255.255.255.0
through DFL-1500. And accomplish the VPN
tunnel establishment.
At DFL-2:
Here we will install the IPSec properties of DFL-2. Note that the "Local Address" and "Remote address" field are opposite to
the DFL-1, and so are "My IP Address" and "Peer's IP Address" field.
Step 1. Enable IPSec
Check the Enable IPSec checkbox and click
Apply.
D-Link
ADVANCED SETTINGS > Firewall > Edit Rules > Insert
ADVANCED SETTINGS > Firewall > Edit Rules
pass
ADVANCED SETTINGS > VPN Settings > IPSec
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