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Basic IP routing configuration task list
235
SmartWare Software Configuration Guide
22 • Basic IP routing configuration
•
Displaying IP route information (see
page 236
)
Configuring static IP routes
Rather than dynamically selecting the best route to a destination, you can configure one or more static routes
to that destination. Once configured, a static route stays in the routing table indefinitely. When multiple static
routes are configured for a single destination and the outbound interface of the current static route goes down,
a backup route is activated, thus improving network reliability. Each route is assigned a default precedence
value and cost value. Modifying these values allow you to set a preference for one route over the next. If static
routes are redistributed through dynamic routing protocol to neighboring devices, only the active static route
to a destination is advertised.
This procedure describes how to configure one or more static IP routes to the same destination
Mode:
Administrator execution
Where the syntax is:
•
network
—The IP address of the target network or subnet.
•
mask
—A network mask where the 1 bits indicate the network or subnet, and the 0 bits indicate the host
portion of the network address provided.
•
address
—The IP address of a next-hop router that can access the target network or subnet.
•
interface—
The name of the outgoing interface to use for the target network or subnet.
•
metric
—This is an optional parameter. Specifies the desirability of the route when compared against other
routes. The range is 0 through 15, where 0 is the preferred route. If no metric is specified, the static route is
assumed to have a metric of 0.
Note
To configure a default static IP route, use 0.0.0.0 for the network number
and mask. A valid next-hop address or interface is required.
Example:
Adding a static IP route
In the following example, packets for network 20.0.0.0/24 will be routed to the device at 172.17.100.2. The
Ethernet port 0 1 has the address 172.17.100.1/24 and is bound to the interface
wan
.
node>enable
node#configure
node(cfg)#context ip router
node(ctx-ip)[router]#route 20.0.0.0 255.255.255.0 172.17.100.2
The route is added to the routing database with the default metric 0. The router will forward packets to the
20.0.0.0 network via the interface
wan
to the router on 172.17.100.2.
Step
Command
Purpose
1
node
(cfg)#context ip router
Enters the IP router
context
2
node
(ctx-ip)[router]#route
network mask
{
address
|
interface
} [
metric
]
Adds a static route
Содержание SmartNode Series
Страница 250: ...RIP configuration task list 250 SmartWare Software Configuration Guide 23 RIP configuration rip enabled ...
Страница 635: ...635 Appendix A Terms and definitions Chapter contents Introduction 636 SmartWare architecture terms and definitions 636 ...
Страница 641: ...641 Appendix B Mode summary Chapter contents Introduction 642 ...
Страница 648: ...648 Appendix D Internetworking terms acronyms Chapter contents Abbreviations 649 ...
Страница 653: ...653 Appendix E Used IP ports available voice codecs Chapter contents Used IP ports 654 Available voice codecs 655 ...