From: Wade Edwards (wade.edwards@xxxxxxxxxxxxxxxxxxx)
Date: Tue Jan 08 2002 - 20:21:12 GMT-3
If you look at the link to CCO that Peter provided, great link, it gives
an example of an ASBR that is also an ABR that has an NSSA area.
One thing that the document says is that you can achieve this using the
following configuration on either the NSSA ASBR or the NSSA ABR.
router ospf 1
summary-address 141.108.10.0 255.255.255.0 not-advertise
I can see this working on the ASBR but not the ABR. I have not tried
this but it does not make sense that it will work on the ABR.
Any thoughts.
L8r.
-----Original Message-----
From: omar guarisco [mailto:oguarisco44@hotmail.com]
Sent: Tuesday, January 08, 2002 4:54 PM
To: ccielab@groupstudy.com
Subject: RE: NSSA
it's not possible to avoid conversion Type7 to Type5 configure the area
NSSA
as totally stub using the command on ABR
area 1 nssa no-summary
so that a default route using LSA type 3 from the ABR
Another question: How it could be that on a NSSA area a router is ASBR
is
and also an ABR ??? Moreover that NSSA area won't support virual links
Thnks for helps
Omar
>From: Peter van Oene <pvo@usermail.com>
>Reply-To: Peter van Oene <pvo@usermail.com>
>To: "'ccielab@groupstudy.com'" <ccielab@groupstudy.com>
>Subject: RE: NSSA
>Date: Tue, 08 Jan 2002 17:33:24 -0500
>
>The below describes the situation where an ASBR happens to be an NSSA
ABR
>at the same time. In this case, the desire is to bring externals into
the
>network on that router, yet not leak them into the NSSA area. The
>no-redistribution command accomplishes that nicely.
>
>However, I think the original poster was looking more for how to
restrict
>the Type 7 to Type 5 conversion that the NSSA ABR will perform by
>default. In this case, adding a summary address with the not-advertise
>option for the prefixes you wish to restrict accomplishes this. The
>following link is quite helpful in explaining both of these situations
in
>some detail.
>
>http://www.cisco.com/warp/public/104/nssa.html#2c
>
>Pete
>
>
>
>At 01:30 PM 1/8/2002 -0800, Jeongwoo Park wrote:
>>Make ASBR into ABR by doing
>>router ospf 1
>> area 1 nssa no-redistribution
>>This way, there will be no type 7 generated
>>
>>-----Original Message-----
>>From: Christian C. Aguillo [mailto:chris_aguillo@alfalak.com]
>>Sent: Tuesday, January 08, 2002 4:46 AM
>>To: GroupStudy
>>Subject: NSSA
>>
>>Hi Friends,
>>
>>How can I inject external routes to OSPF via NSSA ASBR wihtout
conversion
>>of
>>the LSA-7 to LSA-5.
>>
>>Thanks and cheers....
>>
>>
>>
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