CANOGA PERKINS 9175 Command Reference - Manual (Page 212)

CanogaOS Command Reference
15-3
ip address 10.56.0.201/16
!
router ospf 201
network 10.0.0.0/8 area 10.0.0.0
area 10.0.0.0 stub
area 10.0.0.0 default-cost 20
Related Commands
area authentication
area stub
15.3 area filter-list
To filter prefixes advertised in type 3 link-state advertisements (LSAs) between Open Shortest Path First
(OSPF) areas of an Area Border Router (ABR), use the area filter-list command in router configuration
mode. To change or cancel the filter, use the no form of this command.
Command Syntax
area area-id filter-list {access access-list-name | prefix prefix-list-name {in | out}
no area area-id filter-list {access access-list-name | prefix prefix-list-name {in | out}
area-id Identifier of the area for which filtering is configured. The identifier can be
specified as either a decimal value or an IP address.
access Indicates that an accesslist is used.
access-list-name Name of an access list.
prefix Indicates that a prefix list is used.
prefix-list-name Name of a prefix list.
in Access list or prefix list applied to prefixes advertised to the specified area
from other areas.
out Access list or prefix list applied to prefixes advertised out of the specified
area to other areas.
Default
This command has no default behavior.
Command Mode
Router configuration
Usage
With this feature enabled in the “in” direction, all type 3 LSAs originated by the ABR to this area, based
on information from all other areas, are filtered by the prefix list. Type 3 LSAs that were originated as a
result of the area range command in another area are treated like any other type 3 LSA that was
originated individually. Any prefix that does not match an entry in the prefix list is implicitly denied.
With this feature enabled in the “out” direction, all type 3 LSAs advertised by the ABR, based on
information from this area to all other areas, are filtered by the prefix list. If the area range command has