From: Tolulope Ogunsina (togunsina@gmail.com)
Date: Sun Nov 02 2008 - 03:57:25 ARST
Totally stubby areas allow a default route from the ABR. To allow
access to all other routers in the totally stubby area.
Secondly you only need the no-summary option on the ABR.
Regards,
Tolulope
On 11/2/08, Eric Leung <eric.lwc@gmail.com> wrote:
> Hi Omar,
>
> "area 1 stub no-summary" will be the correct answer. The default route
> generated is of type 3. This is to allow all routers in area 1 to route all
> traffic external to Area 1 to the ABR (R1 in your case), this default route
> is genereated automatically and unavoidable.
>
> http://www.cisco.com/en/US/tech/tk365/technologies_tech_note09186a0080094a74.shtml#stubandtotallystubareas
>
> HTH,
> Eric.
> 2008/11/2 omar parihuana <omar.parihuana@gmail.com>
>
>> Hi GS,
>>
>> I'm a bit confused. I have the follow task: Area 1 should not receive LSA
>> Types 3, Types 4 and Types 5. so the answer is:
>>
>> in both routers:
>>
>> router ospf 1
>> area 1 stub no-summ
>>
>> however, the routing table show:
>>
>> O*IA 0.0.0.0/0 [110/74] via 131.1.12.2, 00:14:56, Serial0/0.102
>>
>> and this default route is a LSA Type 3 in accordance to OSPF database:
>>
>> R1#sh ip ospf database
>>
>> Summary Net Link States (Area 1)
>>
>> Link ID ADV Router Age Seq# Checksum
>> 0.0.0.0 22.2.2.2 932 0x80000003 0x0017FF
>> R1#
>>
>> So I think that the answer is not exactly because there is a LSA Type 3
>> (default route) anyway what will be the correct answer?
>>
>> Rgds.
>>
>> --
>> Omar E.P.T
>> -----------------
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>
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-- Best Regards,Tolulope.
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