Export And Import Rules In A Virtual Router Overview - Juniper NETWORK AND SECURITY MANAGER 2010.4 - CONFIGURING SCREENOS DEVICES GUIDE REV 01 Manual

Configuring ScreenOS Devices Guide
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Export and Import Rules in a Virtual Router Overview

302
Table 75: Permitted Route Attributes (continued)
Property Description
Metric Configures how the virtual router assigns a metric to permitted routes
(select one):
Use Metric Specified By User as Imported/Exported Route
Metric—When enabled, the VR assigns the specified metric value to
all matching routes.
Use the Source Route Metric as the Imported/Exported Route
Metric—When enabled, the VR preserves the metric of a matching
route that is imported or exported into another virtual router.
Offset Metric (ScreenOS 5.1 and higher only)—When enabled, the VR
increments the metric of the matching route by the specified number.
Use this option to increase the metric on a less desirable path. For RIP
routes, you can apply the increment to either routes advertised
(route-map out) or routes learned (route-map in). For other routes,
you can apply the increment to routes that are exported into another
virtual router.
For instructions on configuring virtual router route maps, see the Network and Security
Manager Online Help.
Configuring Virtual Routers Overview on page 294
Route Types Overview on page 295
Virtual Routers Overview on page 296
Virtual Router General Properties Overview on page 297
Access List Overview on page 298
Export and Import Rules in a Virtual Router Overview on page 302
Routing Table Entries Overview on page 305
When the security device has multiple virtual routers, you can enable one VR to learn
specified routes in another VR.
Use an export rule on the source VR to export specific routes to the destination VR.
When exporting routes, a virtual router permits other VRs to learn about its network.
Use an import rule on the destination VR to import specific routes from the source VR.
Import rules control which routes can be imported; if the destination VR does not
contain any import rules, the destination VR accepts all exported routes, however, if
you create an import rule, the destination VR accepts only the routes specified in the
import rule.
Configuring an export or import rule is similar to configuring a redistribution rule. You
configure a route map to specify which routes are to be exported/imported and the
attributes of the routes.
Copyright © 2010, Juniper Networks, Inc.