From: Roman Rodichev (rodic000@xxxxxxxxxxx)
Date: Sun May 20 2001 - 22:25:38 GMT-3
Sanjay, I appologize, Aaryn is right about the first one. I just checked it
by using different MD5 keys on several segements in the same area and
routing was working.
>From: "Pickell, Aaryn" <Aaryn.Pickell@getronics.com>
>Reply-To: "Pickell, Aaryn" <Aaryn.Pickell@getronics.com>
>To: "'sanjay'" <ccienxtyear@hotmail.com>, ccielab@groupstudy.com
>Subject: RE: OSPF Authentication
>Date: Sun, 20 May 2001 21:13:37 -0400
>
> > Guys,
> >
> > When you configure MD5 authentication for a certain OSPF area
> > (lets say area
> > 1), all routers in area 1 needs to have the MD5
> > authentication setup using the
> > same key....is this correct ??
>
>All routers in the area must have authentication enabled. I don't believe
>that it needs to be the same key, though. Everyone on the same segment
>must
>have the same key, though. But, I would assume that the reason that the
>keys are associated with the interface is so that you may have different
>keys on different segments. I haven't checked this to be certain, though.
>
> > Secondly, the routers in Area 1 will continue to communicate
> > with routers from
> > other areas (say area 2), even though Area 2 routers don't have any
> > authentication setup.. is this correct ??
>
>Well, border routers in area 1 who have authentication enabled will
>communicate with other routers in area 0, assuming that area 0 has no
>authentication enabled. Obviously, the area 1 only routers will only be
>talking to other area 1 routers.
>
>Aaryn Pickell - CCNP ATM, CCDP, MCSE
>Senior Engineer - Routing Protocols
>Getronics Inc.
>Direct: 713-394-1609
>Email:aaryn.pickell@getronics.com
>
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