From: Pavel Bykov (slidersv@gmail.com)
Date: Tue Nov 18 2008 - 18:11:52 ARST
Hello Sachin.
redistributing default route is not supported under OSPF, and you have to
use "default-information-originate" instead.
"default-route" in this case is not "default candidate" in "show ip route"
output, but a route with a prefix of /0, and because 0.0.0.0/0 has exactly
that prefix, it classifies as such.
If you want default route to still exist in OSPF domain, even when RIP stops
advertising it, you should use "default-information-originate permanent"
command. Without the "permanent" keyword it is going to dissapear as soon as
RIP route to 0.0.0.0/0 goes away.
On Tue, Nov 18, 2008 at 5:34 PM, Sachin D <networker.ccie@gmail.com> wrote:
> Hi
>
> Need help on the below redistribution problem
>
>
>
> _ _ _ _ _ _ _ _ _ _ _ _ _
> | | |
> | RIP | OSPF |
> | | |
> R1<------------>R|2<----------->R3
> | | |
> | | |
> | _ _ _ _ _ _ _ | _ _ _ _ _ _ _ |
>
>
>
> In the above topology
> R2 is connected to R1 and R3.
> R1 and R2 are running RIP,
> R2 and R3 are running OSPF
>
> R1 is sending only default route to R2 via RIP
>
> Hence R2 has only 1 route for RIP subnets
> R* 0.0.0.0/0 [120/1] via x.x.x.x, 00:00:03,
>
> But when I am redistributing RIP into OSPF this default route is not
> getting
> redistributed into OSPF i.e R3 is not learning this default route.
>
> On the vice versa if default is generated in OSPF i.e by R3 and
> redistributed in RIP on R2 default route is passed to R1 i.e R1 learns the
> default route.
>
> Is there any concept I am missing here ?
>
> Why the default route is not getting redistributed into OSPF from RIP ?
>
>
> Regards
>
>
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-- Pavel Bykov ------------------------------------------------- Stop the braindumps! http://www.stopbraindumps.com/Blogs and organic groups at http://www.ccie.net
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