From: Koen Zeilstra (koen@koenzeilstra.com)
Date: Thu May 11 2006 - 04:09:24 ART
That is correct.
Under RIP interface routes matched by the network statement and
redistribute connected are merely the same thing. So when you redistribute
by OSPF it looks pulls the connected route out of the routing table and
does not look for a RIP route.
Strangely enough I have two same routers boths 3640, same IOS. On R2 I can
redistribute EIGRP connected interface directly into OSPF. On R4 however
interface routes matched by the network statements are not redistributed
into OSPF (as it should).
-----------------------
Save the whales. Collect the whole set.
On Wed, 10 May 2006, san wrote:
| Dave,
|
| I am seeing a different behaviour for RIP.
|
| Connected Interfaces of RIP network gets redistributed to OSPF .....when
| "redistribute rip subnets" under ospf.
| Connected Interfaces are present in RIP database & not in Routing table as
| connected.
|
| Is this an exception for RIP ?
|
|
|
| On 5/10/06, Schulz, Dave <DSchulz@dpsciences.com> wrote:
| >
| > Zoen -
| >
| > There is a lot to discuss here, but one item that helped clear up
| > redistribution for me, was understanding what is redistributed from
| > where (RIB or database). When you redistribute from one protocol to
| > another, it will look in the routing table (not the database) to
| > determine which routes to redistribute. So, when you redistribute RIP
| > into OSPF, it is going to pull the routes that are in the routing table
| > that are learned by RIP, if the route was already learned by EIGRP
| > (having a better admin distance, then it will not get redistributed.
| > So, if you redistribute from RIP to OSPF to EIGRP....the route that is
| > in the route table is redistributed from that routing protocol, even
| > though they are in the database. And, you will not have the same route
| > in the routing table from three different protocols.
| >
| >
| > Dave Schulz,
| > Email: dschulz@dpsciences.com
| >
| >
| >
| > -----Original Message-----
| > From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
| > Koen Zeilstra
| > Sent: Wednesday, May 10, 2006 7:49 AM
| > To: ccielab@groupstudy.com
| > Subject: redistributing localy injected routes [20060510]
| >
| > Hi Group,
| >
| > I have 3 questions regarding redistribution.
| >
| > Q1.
| >
| > 2 steps:
| > 1. Make an interface part of an IGP via the network statement
| > 2. Redistribute that IGP into another IGP via another link.
| >
| > In some occasions this will work. For example RIP -> OSPF. Because rip
| > sees the routes part of the network statement as redistributed from
| > connected.
| >
| > I have seen it working for OSPF -> EIGRP as well.
| >
| > Why doesn't it work for others? Ie. what rule prohibits this.
| >
| >
| > Q2.
| >
| > Why doesn't a redistribute RIP to OSPF to EIGRP on the same router work?
| >
| > Q3.
| >
| > This merely sums up the questions above I guess. When redistributing,
| > does
| > the redistribution process go from database to database directly or via
| > the general routing table? For example does a OSPF proces redistributes
| > EIGRP routes from the EIGRP topology or from the EIGRP routes in
| > the routing table?
| >
| > thanks,
| >
| > Koen
| >
| > _______________________________________________________________________
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| >
| > _______________________________________________________________________
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| >
|
|
|
| --
| Thanks & Rgds
| SAN
|
| _______________________________________________________________________
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