Vyatta Network OS Documentation

Learn how to install, configure and operate the Vyatta NOS, which helps drive our virtual networking & physical platforms portfolio.

protocols ospf distribute-list <list-number>

Specifies an access list to filter networks in routing updates.

set protocols ospf [ process pid ] distribute-list list-number [ export type | import ]
delete protocols ospf [ process pid ] distribute-list list-number [ export type | import ]
show protocols ospf [ process pid ] distribute-list list-number
process pid
Specifies the PID of an IPv4 OSPF process.
list-number
The number of an access list to filter networks in routing updates. The number is a number from one of the following ranges of numbers:

1-99: IP standard access list.

100-199: IP extended access list.

1300-1999: IP standard access list (expanded range).

2000-2699: IP extended access list (expanded range).

export type
Specifies the type of export routes to filter. The type is one of the following: bgp, connected, kernel, rip, or static. Multiple types can be specified by creating additional export configuration nodes.
import
The filter for incoming routing updates.

Configuration mode

protocols {
       ospf {
               process pid {
                     distribute-list list-number {
                            export type
                            import
                     }
               }
       }
}

Use this command to specify an access list to filter networks in routing updates.

Note: When extended ACLs are used directly or 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 of the source field is applied to the prefix prior to the comparison with the source. The inverse mask for the destination field is applied to the net mask of the prefix prior to the comparison with the net-mask as specified in the destination field.

Effectively, the prefix must match the source with the application of inverse mask of the source field. And the net mask for the prefix must match the destination with the application of the inverse mask of the destination field.

Use the set form of this command to specify an access list to filter networks in routing updates.

Use the delete form of this command to remove an access list from filtering networks in routing updates.

Use the show form of this command to display the configuration.