From: Jay (ccienxtyear@hotmail.com)
Date: Tue Oct 01 2002 - 22:19:01 GMT-3
Albert is correct.
I have tried the distance command but it is not working the way its suppose
to. I was just wondering if theres a way to break the intra area over inter
area rule. Only way I was able to fix this is to put the ISDN in a different
area. I have spent quite some time on this, but am still pulling my hair,
because I just can't figure out anymore ways to manipulate this. Before I
give up and conclude that Intra Area routes will be prefered first no matter
what and theres no way to break this rule, I thought I ask you guys.
thanks,
Jay
----- Original Message -----
From: "Albert Lu" <albert_lu@optushome.com.au>
To: "'P729'" <p729@cox.net>; "'Jay'" <ccienxtyear@hotmail.com>;
<ccielab@groupstudy.com>
Sent: Tuesday, October 01, 2002 6:03 PM
Subject: RE: OSPF riddle -how to manipulate the OSPF prefer inter area over
intra area
> distance ospf command isn't going to work like it would with distance
vector
> protocols such as rip. Since you would have to set distance on the basis
of
> the source of the routes, which would not be tne next hop like rip but
would
> be the originator of the LSA for OSPF. Distance command looks at the
> router-id which can be many hops away.
>
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of
> P729
> Sent: Wednesday, October 02, 2002 8:37 AM
> To: Jay; ccielab@groupstudy.com
> Subject: Re: OSPF riddle -how to manipulate the OSPF prefer inter area
> over intra area
>
>
> I haven't analyzed your topology, but just focusing on this statement:
> "...running into a few issues with the OSPF route selction process of
> preferring intra area over inter area routes."
>
> --you can modify the AD of each type of OSPF route independently. See the
> 'distance ospf' command...
>
> Regards,
>
> Mas Kato
> https://ecardfile.com/id/mkato
> ----- 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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