How to summarize network in a stub area

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What is the best way to summarize both networks on computers BD8810
Networks are 172.22.xx 172.19.xx both in area and currently OSPF stub with the following settings

BD8810-1
0.0.0.15 create ospf area
0.0.0.15 configure OSPF stub area stub NOSUMMARY-default-cost 20


BD8810-2
0.0.0.15 create ospf area
0.0.0.15 configure OSPF stub area stub NOSUMMARY-default-cost 20


Summarization must be type-3 or type-7?

There will be some type of flashing to networks outside this area 0.0.0.15
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jaime quintana

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Posted 3 years ago

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Mike D, Alum

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Official Response
 

Hello,

 

If I understand this right you would like to advertise the summarized networks 172.22/16 and 172.19/16 from area 15 to area 0.  Is this accurate?  

hope the following helps.

 

Use the area command: 

Config ospf area <area id > add range <ip-address> <netmask> advertise


An area 0 range command will summarize routes from area 0 into other areas.

An area X range command will summarize routes from area X into the backbone.

 

use type 3 to advertise stub area into backbone.

 

Regards,

Mike