I spoke with a guy at cisco on this and he said that IOS only supports redistributing the L2/L1 routes into OSPF. So I don't think you'd run into this scenario on the CCIE lab exam. If this where a real scenario of two companies merging and the merge point is at the end of a L1 area I would probably do static routing and redistribute that into OSPF.
On Sat, Sep 12, 2009 at 1:40 PM, matt reath <[email protected]> wrote: > Ok, I duplicated your issue. My routes on the Level 1/OSPF router are: > 150.1.0.0/16 is variably subnetted, 7 subnets, 2 masks > i ia 150.1.4.0/30 [115/148] via 150.1.4.5, Ethernet0/0 > i ia 150.1.3.0/24 [115/158] via 150.1.4.5, Ethernet0/0 > i ia 150.1.2.0/24 [115/158] via 150.1.4.5, Ethernet0/0 > i ia 150.1.1.0/24 [115/158] via 150.1.4.5, Ethernet0/0 > C 150.1.4.4/30 is directly connected, Ethernet0/0 > i ia 150.1.0.0/24 [115/158] via 150.1.4.5, Ethernet0/0 > C 150.1.4.8/30 is directly connected, Ethernet0/1 > > But the OSPF only router connected to this will not get the i ia routes no > matter what sort of redistribution I do. I'm messing around trying to > figure a solution out... > > On Sat, Sep 12, 2009 at 12:39 PM, matt reath <[email protected]> wrote: > >> Got ya. I'll throw together a network and duplicate the issue and see >> what I come up with. >> >> >> On 9/12/09, karim okasha <[email protected]> wrote: >> > Dear Matt, >> > >> > The L1 router doesn't have L2 routes it only has L1 and ia routes so >> also >> > in >> > the redistribution command you can't specify the ia routes as they >> aren't >> > L1 >> > nor L2 routes. >> > >> > On Sat, Sep 12, 2009 at 4:23 PM, matt reath <[email protected]> wrote: >> > >> >> Attach the config and sh ip route from the router doing the >> >> redistribution >> >> into OSPF. >> >> >> >> >> >> On Sat, Sep 12, 2009 at 9:19 AM, matt reath <[email protected]> wrote: >> >> >> >>> When you do a show ip route do you see both level 1 and level 2 routes >> >>> from IS-IS? >> >>> If you do when you do your redistribute isis are specifying level 1 >> and >> >>> level 2 routes? >> >>> >> >>> For example: >> >>> >> >>> router ospf 100 >> >>> ! redistribute both level-1 and level-2 routes into OSPF >> >>> redistribute isis level-1-2 metric 1 subnets >> >>> >> >>> >> >>> >> >>> On Sat, Sep 12, 2009 at 8:31 AM, matt reath <[email protected]> >> wrote: >> >>> >> >>>> I'm going to take a quick look into this one. Give me a few minutes. >> >>>> >> >>>> On Sat, Sep 12, 2009 at 4:27 AM, karim okasha >> >>>> <[email protected]>wrote: >> >>>> >> >>>>> Dear all, >> >>>>> >> >>>>> I was testing the Route-leaking feature in IS-IS from L2 to L1 and >> the >> >>>>> L1 router in the IS-IS area was getting all the backbone routes. >> This >> >>>>> L1 >> >>>>> router is acting as a redistribution point between the IS-IS domain >> and >> >>>>> the >> >>>>> OSPF domain and when i configured the redistribution on this router >> the >> >>>>> only >> >>>>> routes that were being redistributed into OSPF were only the L1 >> >>>>> routers. I >> >>>>> was wondering is it possible to redistribution inter-area IS-IS >> routes >> >>>>> on L1 >> >>>>> routers or not? >> >>>>> >> >>>>> _______________________________________________ >> >>>>> For more information regarding industry leading CCIE Lab training, >> >>>>> please visit www.ipexpert.com >> >>>>> >> >>>>> >> >>>> >> >>> >> >> >> > >> >> -- >> Sent from my mobile device >> > >
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