Use this command to define the range of addresses to be used by Area Border Routers (ABRs) when they communicate routes to other areas.
| area-id | Specifies the area at the boundary of which routes are to be summarized. |
| ip-address | Specifies the common prefix of the summarized networks. |
| ip-mask | Specifies the length of the common prefix. |
| not-advertise | (Optional) Prevents advertisement of the specified IP address range |
If not-advertise is not specified, the specified IP address range is advertised.
OSPF router configuration.
The “no” form of this command stops the routes from being summarized.
This example shows how to define the address range as 172.16.0.0/16 for summarized routes communicated at the boundary of area 0.0.0.0:
System(rw-config)->router ospf 1 System(rw-config-ospf-1)->area 0.0.0.0 range 172.16.0.0 255.255.0.0
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