ProCurve 2900 Betriebsanweisung PDF herunterladen (Seite 69)

IP Routing Features

Configuring Static IP Routes

Other Sources of Routes in the Routing Table

The IP route table can also receive routes from these other sources:

■ Directly-connected networks: One route is created per IP interface. When

you add an IP interface, the routing switch automatically creates a route

for the network the interface is in.

■ Default route: This is a specific static route that the routing switch uses

if other routes to the destination are not available. See “Configuring the

Default Route” on page 3-20.

Static IP Route Parameters

When you configure a static IP route, you must specify the following

parameters:

■ The IP address and network mask for the route’s destination network or

host.

■ The route’s path, which can be one of the following:

• the IP address of a next-hop router.

• a “null” interface. The routing switch drops traffic forwarded to the

null interface.

The routing switch also applies default values for the following routing

parameters:

■ The route’s metric: In the case of static routes, this is the value the

routing swi tch uses when comparing a static r oute to routes in the IP r o ute

table from other sources to the same destination. This is a fixed metric

for static IP routes, and is set to “1”.

■ The route’s administrative distance (page 3-6): In the case of static

routes, this is the value the routing switch uses to compare a static route

to routes from other route sources to the same destination before placing

a route in the IP route table. The default administrative distance for static

IP routes is 1, but can be configured to any value in the range of 1 - 255.

The fixed metric and administrative distance values ensure that the routing

switch always prefers static IP routes over routes from other sources to the

same destination.

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ProCurve 2900 Betriebsanweisung Seite 69