From: Jonny English (redkidneybeans@gmail.com)
Date: Sat Oct 13 2007 - 19:04:36 ART
when you redistribute EIGRP routes into OSFP and because there are several
points of redistribution you run into the problem where the external EIGRP
routes will be redistributed into OSPF and these routes will then be
redistributed back into EIGRP with a lower AD.
This means you have to manipulate these routes so they are redistributed
back with a higher AD.
Remember that these routes still get redistributed back into EIGRP but they
will see the better route within EIGRP with a AD of 170 that is more
preferred.
For some reason though, I think you need to re-apply your authentication
between the links and this might fix the problem. You would have done this
in an earlier task so check that first.
On 10/14/07, Jo Knight <joknight@gmail.com> wrote:
>
> GS,
>
> I have been working through the redistribution task in this lab, but am
> having no luck with the provided solution guide config.
>
> The idea is that prefixes from BB1 and BB3 have been tagged accordingly
> when distributed from RIP into EIGRP on R6.
>
> R6
>
> ip prefix-list RIP_FROM_BB1 seq 5 permit 212.18.0.0/22 ge 24 le 24
> !
> ip prefix-list RIP_FROM_BB3 seq 5 permit 31.0.0.0/14 ge 16 le 16
> ip prefix-list RIP_FROM_BB3 seq 10 permit 30.0.0.0/14 ge 16 le 16
> !
> !
> !
> route-map RIP2EIGRP permit 10
> match ip address prefix-list RIP_FROM_BB1
> set tag 1
> !
> route-map RIP2EIGRP permit 20
> match ip address prefix-list RIP_FROM_BB3
> set tag 3
> !
> route-map RIP2EIGRP permit 30
>
> I am happy that the tagging is identifying routes as if I redistribute
> between EIGRP and OSPF on R1 I see the tags on R5 for example
>
> My issue is when I follow the solutions guide and apply the following
> config on R1 and R2, what should the following config acheive?
>
> R1
>
> route-map EIGRP2OSPF permit 10
> match tag 1
> set metric 1
> !
> route-map EIGRP2OSPF permit 1000
> !
>
> router ospf 1
> redistribute eigrp 100 subnets route-map EIGRP2OSPF
>
>
> R2
>
> route-map EIGRP2OSPF permit 10
> match tag 3
> set metric 1
> !
> route-map EIGRP2OSPF permit 1000
> !
>
> router ospf 1
> redistribute eigrp 100 subnets route-map EIGRP2OSPF
>
> When I apply this I see the routes from BB1 and BB3 but they all flow
> through R1. Can someone explain what the metric settings are supposed to
> be doing on R1 and R2? If they are set to the same thing then what does
> this achieve?
>
> Thanks,
> Jo
>
> _______________________________________________________________________
> Subscription information may be found at:
> http://www.groupstudy.com/list/CCIELab.html
This archive was generated by hypermail 2.1.4 : Fri Nov 16 2007 - 13:11:14 ART