From: Hansang Bae (hbae@nyc.rr.com)
Date: Sun Sep 15 2002 - 04:15:54 GMT-3
At 04:01 PM 9/15/2002 +1000, Hunt Lee wrote:
>ALL,
>
>I just got a weird one. I dunno if it's IOS related or not, anyway,
>here's the topology.
>
>R1 -- OSPF (Area 0) -- R2 -- OSPF (Area 3 NSSA) --- R3 --- EIGRP -- R4
>
>I have 3 EIGRP networks that are being injected into R3 from R4
>(20.2.0.0/16, 20.3.0.0/16 & 20.4.0.0/16), and I can see them all at R2
>as O N2 routes. I want to summarzie them before they are injected into
>Area 0. So I use the "area 3 range" command at R2 (NSSA ABR & Area 0
>ABR)
>
>
>router ospf 1
> log-adjacency-changes
> area 3 nssa
> area 3 range 20.0.0.0 255.248.0.0
> network 172.16.1.0 0.0.0.255 area 3
> network 192.168.1.0 0.0.0.255 area 0
>
>But then when I checked the Routing Table at R1, all those 20.x.0.0
>routes still appears as their own routes, and the summary route
>(20.0.0.0/13) aren't even there.
>[snip]
> Area 3
> Number of interfaces in this area is 1
> It is a NSSA area
> Perform type-7/type-5 LSA translation
> Area has no authentication
> SPF algorithm executed 9 times
> Area ranges are
> 20.0.0.0/13 Passive Advertise <--- what does this mean?
> Number of LSA 8. Checksum Sum 0x42B10
> Number of opaque link LSA 0. Checksum Sum 0x0
> Number of DCbitless LSA 0
> Number of indication LSA 0
> Number of DoNotAge LSA 0
> Flood list length 0
It means that nothing is being advertised. You created a summarized address for an external route. You should use the "summary-address" on the ASBR.
hsb
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