From: Jensen, Brian D. (bdjensen@eschelon.com)
Date: Tue Jul 31 2007 - 22:37:41 ART
Hi Greg,
In order for the redistributed route to be originated into the ospf
areas you will need the "default-information originate" command under
the ospf process on the router doing the redistribution. This will
generate a default route into ospf as long as the RIP route is valid. If
you wish to redistribute a route whether or not the RIP route is valid,
then you will need the "default-information originate always" command
under the ospf process.
Thanks,
Brian
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
Gregory Gombas
Sent: Tuesday, July 31, 2007 8:29 PM
To: Group study
Subject: Re: Can you redistribute a default route from one protocol to
another?
By the way, I tested this with EIGRP and the RIP default DOES get
redistributed into EIGRP.
Must be an OSPF thing....
On 7/31/07, Gregory Gombas <ggombas@gmail.com> wrote:
> Not sure if this falls under the body of common knowledge, but when
> redistributing from one protocol to another, will the default route
> get redistributed as well?
>
> In this case I am learning a default route via rip.
> I am redistributing rip into ospf but do not see the default route
> being redistributed.
>
> Rack8SW1#show ip route 0.0.0.0
> Routing entry for 0.0.0.0/0, supernet
> Known via "rip", distance 120, metric 4, candidate default path
> Redistributing via ospf 1, rip Last update from 163.8.57.5 on Vlan57,
> 00:00:14 ago Routing Descriptor Blocks:
> * 163.8.57.5, from 163.8.57.5, 00:00:14 ago, via Vlan57
> Route metric is 4, traffic share count is 1
>
> Rack8SW1#
>
> Rack8SW1#show ip ospf database
>
> OSPF Router with ID (150.8.7.7) (Process ID 1)
>
> Router Link States (Area 0)
>
> Link ID ADV Router Age Seq# Checksum Link
count
> 10.3.3.3 10.3.3.3 1002 0x80000009 0x002E8F 3
> 10.4.4.4 10.4.4.4 94 0x80000010 0x00C933 3
> 150.8.7.7 150.8.7.7 89 0x8000000B 0x00B5BB 1
>
> Net Link States (Area 0)
>
> Link ID ADV Router Age Seq# Checksum
> 163.8.0.4 10.4.4.4 95 0x80000004 0x005FCE
> 163.8.0.134 10.4.4.4 986 0x80000007 0x008DB4
>
> Type-5 AS External Link States
>
> Link ID ADV Router Age Seq# Checksum Tag
> 150.8.7.0 150.8.7.7 91 0x80000006 0x00A3A5 0
> 163.8.7.0 150.8.7.7 91 0x80000006 0x00F942 0
> 163.8.57.0 150.8.7.7 91 0x80000006 0x00D138 0
> Rack8SW1#
>
> As you can see, show ip route says its learned via rip and is
> redistributing via ospf 1, but it does not appear in the OSPF
> database.
>
> If this is common knowledge, can someone please point me to the
> documentation that says this is not allowed?
>
> Thanks,
> Greg
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