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DFL-500 User Manual
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If you select dead gateway detection you can also configure ping target, detection interval, and Fail-
over detection for the routing gateway.
• Set Ping Target to the IP address that the DFL-500 NPG should ping to test connectivity with the
gateway.
The ping target could be the IP address of the gateway but it is more useful if it is the IP address of a
server on the other side of the gateway that will respond to pings in a reliable manner
• Set Detection Interval to specify how often the DFL-500 NPG tests the connection to the ping target.
•
Set Fail-over Detection to the number of times that the connection test fails before the DFL-500 NPG
assumes that the gateway is no longer functioning.
• Select OK to save the routing gateway.
•
Repeat this procedure to add all the routing gateways that you require.
Adding a default route
Use the following procedure to add a default route for network traffic leaving the external interface.
•
Go to System > Network > Routing Table .
•
Select New to add a new route.
• Set the Source IP and Netmask to 0.0.0.0.
•
Set the Destination IP and Netmask to 0.0.0.0.
•
Set Gateway 1 to the IP address of the routing gateway that routes traffic to the Internet.
If you are adding a default route (source and destination IPs and netmasks set to 0.0.0.0 you do not have to
use the procedure Adding routing gateways
to add this routing gateway.
• Select OK to save the default route.
Adding routes to the routing table
When you have added routing gateways, you can use the following procedure to add routes to them. Add
routes to determine the path that data follows from the DFL-500 NPG to routing gateways and other networks.
• Go to System > Network > Routing Table .
•
Select New to add a new route.
•
Type the Source IP address and Netmask for the route.
• Type the Destination IP address and Netmask for the route.
•
Add the IP addresses of up to four gateways.
The IP addresses that you add must match the IP addresses of the routing gateways added using the
procedure Adding routing gateways
.
If you are adding a static route from the DFL-500 NPG to a single destination router, only specify one
gateway.