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Chapter 9: Routing Policy Configuration Guide
The <filter-id>, if specified, is the identifier of the route-filter associated with this export-
policy. If there is more than one route-filter for any export-destination and export-source
combination, then the ip-router policy export destination <exp-dest-id> source <exp-src-id>
command should be repeated for each <filter-id>.
Creating an Export Destination
To create an export destination, enter one the following commands in Configure mode:
Create a RIP export destination.
Create an OSPF export
destination.
Creating an Export Source
To create an export source, enter one of the following commands in Configure mode:
Create a RIP export
source.
Create an OSPF export
source.
Import Policies
Import policies can be constructed from one or more of the following building blocks:
•
Import-source - This component specifies the source of the imported routes. It can also
specify the preference to be associated with the routes imported from this source. The
routes to be imported can be identified by their associated attributes, including source
protocol, source interface, or gateway from which the route was received, and so on.
•
Route Filter - This component provides the means to define a filter for the routes to be
imported. Routes that match a filter are considered as eligible for importation. This can
be done using one of two methods:
–
Creating a route-filter and associating an identifier with it. A route-filter has
several network specifications associated with it. Every route is checked against
the set of network specifications associated with all route-filters to determine its
eligibility for importation. The identifier associated with a route-filter is used in the
ip-router policy import command.
–
Specifying the networks as needed in the ip-router policy import command.
150
ip-router policy create rip-export-
destination
ip-router policy create ospf-export-
destination
ip-router policy create rip-export-source
ip-router policy create ospf-export-source
Internet Appliance User Reference Manual
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