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Command Line Interface
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area range
This command summarizes the routes advertised by an Area Border Router (ABR).
Use the no form to disable this function.
Syntax
[no] area area-id range ip-address netmask [advertise | not-advertise]
• area-id - Identifies an area for which the routes are summarized.
(The area ID must be in the form of an IP address.)
• ip-address - Base address for the routes to summarize.
• netmask - Network mask for the summary route.
• advertise - Advertises the specified address range.
• not-advertise - The summary is not sent, and the routes remain hidden
from the rest of the network.
Command Mode
Router Configuration
Default Setting
Disabled
Command Usage
• This command can be used to advertise routes between areas.
• If routes are set to be advertised, the router will issue a Type 3 summary LSA
for each address range specified with this command.
• This router supports up 64 summary routes for area ranges.
Example
This example creates a summary address for all area routes in the range of 10.2.x.x.
area default-cost
This command specifies a cost for the default summary route sent into a stub or
not-so-stubby area (NSSA) from an Area Border Router (ABR). Use the no form to
remove the assigned default cost.
Syntax
area area-id default-cost cost
no area area-id default-cost
• area-id - Identifier for a stub or NSSA, in the form of an IP address.
• cost - Cost for the default summary route sent to a stub or NSSA.
(Range: 0-65535)
Command Mode
Router Configuration
Console(config-router)#area 10.2.0.0 range 10.2.0.0 255.255.0.0 advertise
Console(config-router)#