Re: OSPF Summerisation seen on one spoke but not another

From: stephen skinner (stephenski@gmail.com)
Date: Sun Oct 19 2008 - 07:00:21 ARST

Raman ,

thanks for your reply ,

but i am actually trying to send the summury to one neibhour only ,

i beleive REZA has answered my queiry.

Thanks

On Sat, Oct 18, 2008 at 9:06 PM, Ramanpreet Singh
<sikandar.raman@gmail.com>wrote:

> If I have understood your question correctly, you are trying to filter LSA
> Type-3. THe first step will be to configure a prefix-list as follows
>
> ip prefix-list TEST seq 5 deny x.x.x.x/22
> ip prefix-list TEST seq 10 permit 0.0.0.0/0 LE 32
>
> Once you have configured your prefix-list apply it to area that it must be
> filtered from, in this case its area 10? right? . It has to be configured on
> an ABR.
>
> on R2
>
> router ospf XX
> area 10 filter-list prefix TEST in.
>
>
> I hope I have understood your question correctly!
>
> Thanks,
> Raman
>
>
>
> On 10/18/08, stephen skinner <stephenski@gmail.com> wrote:
>
>> hello,
>>
>> could anyone shed some light on this please.
>>
>> i have the following topology
>>
>> R1 R3
>> - -
>> - -
>> --
>> R2 -----------R4
>>
>>
>> hub and spoke topology for R1 , R2, R3 all using physicall interfaces.
>>
>> Ethernet topology fot R2-R4
>>
>> R1,R2,R3 area in area 10 ( OSPF point-to-Multipoint interfaces)
>> R2 and R4 are in area 0 ( OSPF Broadcast interfaces)
>>
>> R4 area 0 is sending the following networks
>>
>> 10.10.10.0/24
>> 10.10.11.0/24
>> 10.10.12.0/24
>>
>> and i have created a summary on R2 using a /22 network to send to area 11.
>>
>> is there any way to send this summary to just R3 instead of R1 ???
>>
>> i know i can filter it out on R1, but i wanted to try and stop it leaving
>> R2
>> bound for R1
>>
>> i have been trying differnet things, Area filter , outbound distribute
>> list
>> ,
>>
>> but nothing seems to work ,
>>
>> does anyone have any idea.
>>
>> TIA
>>
>>
>> --
>> Only two things are infinite, the universe and human stupidity, and I'm
>> not
>> sure about the former.
>>
>>
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> 

-- 
Only two things are infinite, the universe and human stupidity, and I'm not
sure about the former.

Blogs and organic groups at http://www.ccie.net

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