From: Don (seadon@attbi.com)
Date: Wed Oct 02 2002 - 00:57:23 GMT-3
Last time I looked, O routes will be used before O-IA, which will be used
before O-EX routes in all cases.
Don
----- Original Message -----
From: "Jay" <ccienxtyear@hotmail.com>
To: <ccielab@groupstudy.com>
Sent: Tuesday, October 01, 2002 1:52 PM
Subject: OSPF riddle -how to manipulate the OSPF prefer inter area over
intra area
> Folks,
>
> I have attached a topolgy that I am working on for simplicity, heres the =
> problem -
> I am trying to get a OSPF setup done and running into a few issues with =
> the OSPF route selction process of preferring intra area over inter area =
> routes. the requirement is that..The ISDN link between R2 and R5 shd be =
> acctive only when the FR cloud is down. I am using OSPF demand circuit =
> ..Since R5 is now part of Area 1 the loopbacks on R2 and R4 are now seen =
> as intra area routes and the ISDN route is prefferrd over the ethernet =
> route. I tried to use the distance command and with one and then with =
> two ospf process. Also an intersting thing here is that the External =
> routes for RIP and EIGRP are also learnt through the BRI even after =
> canging the redistributed route type to E1 to include internal cost. I =
> am not if I am missing something here
>
> R3 is connected via Ethernet to the Area 0. I forgot to put that on the =
> drawing.
> My configurations are simple..partial configs
>
> R5
>
> router ospf 1
>
> network 150.35.15.0 0.0.0.255 area 0
>
> network 50.1.1.0 0.0.0.255 area 1
>
> network 5.5.5.0 0.0.0.255 are 0
>
> router-id 5.5.5.5
>
> redistribute eigrp 1 subnets route-map eigrp2ospf
>
> R2
>
> router ospf 1
>
> network 150.35.24.0 0.0.0.244 are 1
>
> network 50.1.1.0 0.0.0.255 are 1
>
> network 2.2.2.0 0.0.0.255 are 1
>
> redisribute rip subnets route-map rip2ospf
>
> Interface bri 0/0
>
> ip add 50.1.1.2 255.255.255.0
>
> ip ospf demand circuit
>
> ip ospf cost 1500
>
> [GroupStudy.com removed an attachment of type image/gif which had a name
of pref.gif]
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