Re: OSPF Neighborship

Hi,
you need to review this
1.-Same Ttimers
2.-Same Mtu
 3.-Same Area.
4.-authentication
5.-Stub flags
 6.-OSTP network type
7.-network mask

And also mutlicast, filters because you are using multicast at broadcast
media. Obviously, you have checked tcp connectivity, did you?
hth,
robclav

2011/10/4 Iam Here <go_soon2010_at_hotmail.com>

> I have 3 routers in the same subnet (same Switch) and I'd like R1 to make
> neighborship with R2 and R3 only
> in other words R2 and R3 can't establish any neighborship
>
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-- 
Robert Clavero
CCIE RS/wr, CCNP, CCSP, CCSE NGX, SCSA 9, WLFES, BNP y JNCIA WX
blog:http://robclavbcn.blogspot.com
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Blogs and organic groups at http://www.ccie.net