protocols ospfv3 default-information originate
Generates a default external route into an OSPFv3 routing area.
By default, the system does not generate a default external route into an OSPFv3 routing area. When enabled to do so, the default depends on the type of area into which the default route is being advertised:
- In stub areas, a Type 3 LSA is generated with a metric of 1 and the metric type is ignored.
- In not-so-stubby areas (NSSAs) configured to import summary advertisements, a Type 7 LSA with a metric of 1 and a metric type of 2 is generated.
- In NSSAs configured not to import summary advertisements, a Type 3 LSA with a metric of 1 and the metric type is ignored.
- process-id
- An OSPFv3 process ID. Enter alphanumeric characters.
- metric
- The metric to be applied to the default route. The range is 0 to 16777214. The default is 1.
- type
- The external route metric type to be associated with the Type 5 default link-state advertisement (LSA). Supported values are as follows:
1: Type 1 external route.
2: Type 2 external route.
The default is 2.
Configuration mode
protocols {
ospfv3 {
process process-id {
default-information {
originate
{
metric metric
metric-type type
}
}
}
}
}
Use this command to generate a default external route into an OSPFv3 routing area. The default route is redistributed into an OSPFv3 routing area.
If you redistribute routes in this way, the router automatically becomes an Autonomous System Boundary Router (ASBR). The router must have a default route configured before it can generate one, unless the always keyword is specified.
Use the set form of this command to generate a default external route into an OSPFv3 routing area.
Use the delete form of this command to disable the generation of a default external route into the OSPFv3 routing area or to restore default parameter values.
Use the show form of this command to display default route distribution configuration.
When extended IPv4 ACLs are used in a route map, the route must be specified in the source field of the ACL and the net mask of the route must be specified in the destination field of the ACL.
The inverse mask for the source field is applied to the prefix before the comparison with the source. The inverse mask for the destination field is applied to the net mask of the prefix before the comparison with the net mask as specified in the destination field.
Effectively, the prefix must match the source to the application of the inverse mask of the source field. And the net mask for the prefix must match the destination to the application of the inverse mask of the destination field.