Refer to the exhibit. The network engineer configured the summarization of the RIP routes into the OSPF domain on R5 but still sees four different 172.16.0.0/24 networks on R4. Which action resolves the issue?
A.
R5(config)#router ospf 99 - R5(config-router)#network 172.16.0.0 0.255.255.255 area 56 R5(config-router)#area 56 range 172.16.0.0 255.255.255.0
B.
R5(config)#router ospf 1 -
R5(config-router)#no area - R5(config-router)#summary-address 172.16.0.0 255.255.252.0
C.
R4(config)#router ospf 1 -
R4(config-router)#no area - R4(config-router)#summary-address 172.16.0.0 255.255.252.0
D.
R4(config)#router ospf 99 - R4(config-router)#network 172.16.0.0 0.255.255.255 area 56 R4(config-router)#area 56 range 172.16.0.0 255.255.255.0
The summary address only can be configurated in the ASBR routers in OSPF, in this case is only the R5, and u can discard the other alternative because they are trying other ospf process, and the ospf process has to be 1
To add to this R5 cannot be an ABR as it is not conencted to area 0. Therefore only summary-address command works, option B or C. Option C is for router 4, which is not doing the summarization.
Exclude area range because is ASBR and not ABR
Than the router is R5 so B
upvoted 2 times
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