From: Cagri Yucel (cyucel@gmail.com)
Date: Fri Oct 13 2006 - 03:11:47 ART
Hi,
I just checked the diagram not the full scenario. But think this way. If
something redistributed to EIGRP say at R5 which will have an AD of 170
within the EIGRP domain. Then R4 (for example) will redistribute this to
OSPF as external (default AD 110) and o-oooo R4 will have two routes to this
destination one via OSPF (AD 110) and on via EIGRP (AD 170) and OSPF route
will be preferred (or it will keep flapping depending the setup) furthermore
again you may have reachability or not depending on the specific setup.
If you set external AD of OSPF to 171 router will always prefer EIGRP
externals over OSPF (if multiple routes exists).
Hope this helps,
On 10/12/06, Grabler, Ross (IT) <Ross.Grabler@morganstanley.com> wrote:
>
> Guys,
> May be you can help me out,
>
> In WB V1 Lab2, Task 4.11.
> Is asking to mutually redistribute b/w ospf and eigrp on R3 and R4.
> Solution of the lab changes to admin distance of the external routes to
> 171 (higher than External Eigrp).
> But I don't see a reason to change the AD. Everything should work fine
> with default settings.
> What am I missing?
>
> Thanks for your help in advance.
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-- -cagri
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