Re: OSPF

From: Ruhann <groupstudy_at_ru.co.za>
Date: Wed, 8 Apr 2009 19:26:32 +0200

Thanks I just needed to confirm that. :)

Regards

On Wed, Apr 8, 2009 at 6:44 PM, Paul Cosgrove <paul.cosgrove_at_gmail.com>wrote:

> Hi Ruhann
>
> nssa no-summary would generate a type-3 default.
>
> Paul.
>
>
> Ruhann wrote:
>
>> Hi guys
>>
>> If you have the following setup
>>
>> RIP----- (R5&R6)---- AREA 0----(R2)----AREA 27-----(R1)----- EIGRP
>>
>>
>>
>> 3.5 The task says area-27 should be configured as a stub. Type 7 LSA's
>> should be permitted.
>> A - easy enough, just area 27 nssa.
>>
>> Later on when getting to the redistribution,:
>> 3.9 - Redistribute as needed, on R1, R5, R6, confirm full-reachability to
>> from Area27 to the RIP domain.
>>
>> The question I have is regarding generating of a default into area 27,
>> while
>> not voilating
>> the DO's, and DONT's that say "do not create a static/default unless
>> stated
>> otherwise"
>>
>> Area 27 needs full reachability to reach the RIP domain, and since being a
>> NSSA area,
>> it does by default NOT get a Default route (0/0).
>>
>> I configured on R2 : " area 27 nssa no-summary"
>> So without violating the DO's and DONT's, changed the area type to
>> Total-NSSA,
>> thereby creating a default route automatically. This is also not breaking
>> task 3.5, as
>> Type-7 LSA are still permitted, nor any other task.
>>
>> But, the solution in the MOCK lab, used the following command or R2:
>> " area 27 nssa default-information-originate"
>>
>> Mine was marked wrong, while it did not break any reachability while
>> meeting task requirements
>> I did not opt to use the default-information-originate as I assumed that
>> would count as creating a default
>> route manually, which is a beeeg NO-NO
>>
>> Am I taken this wrong, I feel my solution is correct and technically more
>> correct than the lab solution?
>> Is using the command " area 27 nssa default-information-originate" not
>> count for manually creating
>> a default route, even when not explicitly told?
>>
>> Please share you views on this
>>
>>
>>
>
>

-- 
<ruhann>
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Received on Wed Apr 08 2009 - 19:26:32 ART

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