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Old 06-17-2009, 04:49 AM
admin admin is offline
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Default Challenge: Where to configure OSPF summary?

In R1’s route table, there are 4 26-bit OSPF routes -172.16.1.0/26, 172.16.1.64/26, 172.16.1.128/26 and 172.16.1.192/26. Which configuration is right to ensure the 4 routes appear as 1 summary route of 172.16.1.0/24 in R4?





R1’s Route Table

A.Configure “area 1 range 172.16.1.0 255.255.255.0” on R1
B.Configure “area 1 range 172.16.1.0 255.255.255.0” on ABR-1
C.Configure “area 0 range 172.16.1.0 255.255.255.0” on ABR-1
D.Configure “area 0 range 172.16.1.0 255.255.255.0” on ABR-7
E.Configure “area 7 range 172.16.1.0 255.255.255.0” on ABR-7

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Old 06-17-2009, 04:51 AM
Chris Chris is offline
 
Join Date: Jun 2009
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Default my answer

I think both B and D are correct.
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