Re: Preventing an EIGRP/OSPF Neighbor Forming

From: Paul Borghese (pborghese@groupstudy.com)
Date: Wed Nov 30 2005 - 12:09:42 GMT-3


In OSPF a neighbor relationship will not be formed if any of the following
mismatch:

hello/dead interval
area id
stub flag
authentication
subnet mask
mtu

So for example, if you change the hello interval on one side, the neighbor
will not form. You can see this by doing a "debug ip ospf adj".

For EIGRP, you can try changing the K values or Autonomous System number.
EIGRP will for a relationship even if the hello values do not match.

Take care,

Paul Borghese

> Hello,
>
>
>
> Hypothetical - you have an interface with many EIGRP/OSPF neighbours.
> You want to prevent one; you don't want to use an interface access list.
>
>
>
> In BGP there is the neighbour shutdown command, PIM has a neighbour
> list. Any thing similar for OSPF or EIGRP?
>
>
>
> Thanks,
>
> Mike
>
>
> Mike Ollington
> Technical Consultant
> Dimension Data
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