From: Jens Petter Eikeland (jenseike@start.no)
Date: Mon Sep 12 2005 - 14:09:58 GMT-3
Just wanted to say one more thing to you... If you look at what he has done
he has redistributed e0 in to ospf the right way. This will be ok, and e0
will show up on r1 until he enters the command redistributed loopback 0 on
the same router. This is when the e0 route disapers from the routing table
of r1. As I said in the last post, lab it up yoursefe. It will take you 10
minuts to realize that this really is so..
Jens P
-----Opprinnelig melding-----
Fra: Godswill Oletu [mailto:oletu@inbox.lv]
Sendt: 12. september 2005 18:42
Til: Jens Petter Eikeland; zero5291@gmail.com
Kopi: ccielab@groupstudy.com; kumara.shunmugam@wipro.com
Emne: Re: redistribution between eigrp and ospf
Ali,
If you can, post configs from R1 & R2.
Just redistributing connected with a route-map will not make 'e0' or other
routes redistributed from eigrp to disappear from your routing table or the
routing table of R1. R2 will treat each statement one after the other and in
a top to bottom fashion (redistribution will be treated first and your
network statements will be rearranged and treated one after the other after
the redistribute command).
If the network of e0 is not been advertised by ospf separately (ie you are
not using 'network <e0 network> area <#>' under your ospf process or any
command that will advertise it> and it is only been advertised under your
eigrp process and u are relying on the 'redistribute' command to send it to
ospf, make sure you have 'redistribute eigrp <as#>.....' under your ospf
process with the 'redistribute connected...' . Redistribute eigrp <as#> will
take care of all routes from eigrp including your 'e0' and the 'redistribute
connected route-map' will filter your connected networks by the route-map
and only advertise the ones that passed the test.
Posting your configs will sort things out and put you in the right
track.....
HTH
Godswill Oletu
----- Original Message -----
From: "Jens Petter Eikeland" <jenseike@start.no>
To: <zero5291@gmail.com>
Cc: <ccielab@groupstudy.com>; <kumara.shunmugam@wipro.com>
Sent: Monday, September 12, 2005 11:50 AM
Subject: SV: redistribution between eigrp and ospf
> Hi
>
>
>
> What do you mean. This is how the router is behaving. Please lab it up
> yourselfe. I have done it several times, and
> this happens every time
>
>
>
> Jens Petter Eikeland
>
>
>
>
>
> _____
>
> Fra: Ali.Huang [mailto:zero5291@gmail.com]
> Sendt: 12. september 2005 17:48
> Til: Jens Petter Eikeland
> Kopi: ccielab@groupstudy.com; kumara.shunmugam@wipro.com
> Emne: Re: redistribution between eigrp and ospf
>
>
>
> Thanks your replies.
>
> I wonder if it is a default behavior,I doubt.
>
> If not redistribute connected ,I checked the routing table,and found the
> metric of e0 doesn't like a connected network at all.
>
> So I feel doubt.
>
>
> On 9/12/05, Jens Petter Eikeland <jenseike@start.no> wrote:
>
> Ok, I have done some reachearc and found what is happening to the router -
>
> When you do redistribution here between eigrp and ospf (or any other
> routing protocol.
>
> Router eigrp 1
> Network ( e0 )
> Redistribute ospf 1
>
> (the router will by default run this command)
> Redistribute connected subnets route-map conn
>
> Route-map default permit 10
> Match interface e0
>
> (This is what the router do when you add a network command
> to the routing process to add the nets in to the routing table
> automaticly)
>
> When you do a redistributed conected on the same router with a match int
> Lo0
>
> Router ospf 1
> Redistribute connected subnet route-map conn
>
> Route-map conn
> Match int lo0
>
> When you do this you will loose the Ethernet interface that you advertised
> in to eigrp
> from the routing table and you will breake the redistribution process that
> eigrp did on its connected interfaces. This is a default behaviour of
> cisco
> routers.
>
> You can solve this by doing in ospf :
>
> Redistributed connected permit 10 route-map conn
>
> Route-map conn
> Match interface e0
>
> In addition to the connected loopback you redistributed in earlier
>
>
>
> Hope this explain this for you. This is a behaivur that the router has,
> and
> this is something you need to think of when you do redistribution on a
> border router
>
> Jens P
>
>
> -----Opprinnelig melding-----
> Fra: nobody@groupstudy.com [mailto:nobody@groupstudy.com] Pe vegne av
> Ali.Huang
> Sendt: 12. september 2005 13:35
> Til: Cisco certification
> Emne: redistribution between eigrp and ospf
>
> hi,group,
> Topo:R1---ospf-----(s0)R2(e0)---eigrp
> I do bi-direction redistribution.work well.and the subnet of e0 was
> diaplayed in R1 routing table.But when I want to redistribute loopback0 of
> R2 into ospf domain,use the following clauses;
> route-map CON permit 10
> match interface Loopback0
> router ospf 10
> redistribute connected metric-type 1 metric 100 subnets route-map CON
> The subnet of e0 disappeares from R1 routing table,and the loopback0 of R2
> OK.If removes the redistribute connected,OK.it come back.who can tell me
> why?
>
> THX.
> Ali.huang
>
> _______________________________________________________________________
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>
>
>
>
> --
> THX.
> Ali.huang
>
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