D-Link DFL-900 User Manual page 124

Part V
Virtual Private Network
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.
Step 5. Add a Firewall rule
Same as at DFL-1. We need to add an extra
firewall rule to allow IPSec packets to come from
internet. So here we select WAN1-to-LAN1
direction, and click Insert button.
Step 6. Customize the Firewall rule
Enter the Rule Name as AllowVPN, Source IP
as WAN1_VPNB (192.168.40.0), and Dest.
IP as LAN1_VPNB (192.168.88.0). Click
Apply to store this rule.
If you have not yet configured the Source IP, Dest
IP or Service objects. Please refer Chapter 9 for
the setting information first.
D-Link
ADVANCED SETTINGS > VPN Settings > IPSec > IKE > Add
ADVANCED SETTINGS > Firewall > Edit Rules
ADVANCED SETTINGS > Firewall > Edit Rules > Insert
116