D-Link DFL-1600 User Manual page 99

10.4. Route Failover
2. Add default route over the WAN1 interface.
Next step is to add default route for interface WAN1.
Routes Main Routing Table
Enter the following:
General
Interface: WAN1
Network: 0.0.0.0/0
Gateway: Default gateway of ISP A.
Local IP Address: (None)
Metric: 1
Monitor
Monitor This Route: Enable
Monitor Interface Link Status: Enable
Monitor Gateway Using ARP Lookup: Enable
Then click OK
It is possible to manually configure the ARP lookup interval to use. The
chosen value should be at least 100 ms. If multiple routes are monitored on
the same interface, a higher value may have to be chosen to make sure that
the network is not flooded with ARP requests.
3. Add default route over the WAN2 interface.
Next step is to add default route for interface WAN2.
Routes Main Routing Table
Enter the following:
General
Interface: WAN2
Network: 0.0.0.0/0
Gateway: Default gateway of ISP B.
Local IP Address: (None)
Metric: 2
Then click OK
Note
D-Link Firewalls User's Guide
Add Route:
Add Route:
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