Configuring A Default Route - HP ProCurve Secure 7000dl Series Basic Management And Configuration Manual

Using the Web Browser Interface for Basic Configuration Tasks
Routing
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the same destination (for example, one through a primary connection and
one through a backup connection), you should assign the route with lower
priority a higher administrative distance. The router will only add the
second route if the first route becomes unavailable.
5. Click Add.
6. The Route Table window displays all routes that the router is currently
using to forward traffic, including any static routes. You can delete a static
route by clicking the Delete button to its right.

Configuring a Default Route

A default route is a special static route. It is a route to network 0.0.0.0 0.0.0.0.
The all-zero subnet mask ensures that all traffic matches this route. When a
packet arrives en route to a destination to which the router does not know a
more specific route, it uses the default route rather than dropping the packet.
For example, your network connects to the Internet through PPP interface 1
only. Rather than learning routes to all external networks from the ISP router,
the router can simply forward all external traffic (that is, traffic for which it
does not know another route) through the PPP interface.
Configure a default route as you would any other static route:
1. In the left navigation bar, select Route Table under Router/Bridge.
2. Enter 0.0.0.0 in the Destination Address field and 0.0.0.0 in the Destination
Mask field.
3. It is often a good idea to use a forwarding interface as the gateway rather
than a next hop address. In this way, the route remains valid even if the
peer router's IP address changes. Select Interface and choose the forward-
ing interface from the pull-down menu.