From: Narbik Kocharians (narbikk@gmail.com)
Date: Thu Jan 04 2007 - 11:39:35 ART
You could always advertise the network directly under the interface as
follows:
int f0/0
ip ospf 1 area 0
In this case you are also being very specific.
On 1/4/07, Narbik Kocharians <narbikk@gmail.com> wrote:
>
> I totally agree with Salau, with that configuration you are being as
> specific as possible.
>
> 150.1.1.1 0.0.0.0
>
>
> On 1/4/07, R S <ccie17030@yahoo.com> wrote:
> >
> > Rik,
> > The routers actually complaint about it when you
> > create the 2nd interface that have the same subnet,
> > but still take the config. and works !
> > I remember of doing something like this with the
> > wicky-wicky-lab NMC/lab 3.
> > So if they ask for one, stick with one to be safe.
> > HTH,
> > lP
> > --- "Guyler, Rik" < rguyler@shp-dayton.org> wrote:
> >
> > > The router won't support more than one address in
> > > the same subnet on two
> > > different interfaces. At least that used to be a
> > > Cisco "golden rule" and as
> > > far as I know, still is.
> > >
> > > I believe "network 150.1.1.1 0.0.0.255" is correct,
> > > which is an exact match
> > > between both the network statement and the
> > > interface.
> > >
> > > Rik
> > >
> > > -----Original Message-----
> > > From: nobody@groupstudy.com
> > > [mailto:nobody@groupstudy.com] On Behalf Of
> > > Salau,Olayemi
> > > Sent: Thursday, January 04, 2007 8:26 AM
> > > To: Frank
> > > Cc: Cisco certification
> > > Subject: RE: ospf wildcard bits
> > >
> > > I would use
> > >
> > >
> > >
> > > router ospf 1
> > >
> > > netwo 150.1.1.1 0.0.0.0
> > >
> > >
> > >
> > > Remember under OSPF, network command enables routing
> > > process on specified
> > > "interface", and not network.
> > >
> > > If you use 150.1.1.1 0.0.0.255, you're literally
> > > saying enable ospf on all
> > > interfaces within the 150.1.1.0 network. What if
> > > there is another interface
> > > 150.1.1.3 on this router in which you're not
> > > required to run OSPF on?
> > >
> > >
> > >
> > > So I would say use network 150.1.1.1 0.0.0.0 area X
> > > in other to match
> > > interface exactly.
> > >
> > >
> > >
> > > Many Thanks
> > >
> > > _________________________________________________
> > >
> > > Olayemi Salau
> > >
> > > Network Analyst
> > >
> > > I.T. Solutions Division
> > >
> > > Southampton City Council
> > >
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> > >
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> > >
> > > -----Original Message-----
> > > From: nobody@groupstudy.com
> > > [mailto:nobody@groupstudy.com] On Behalf Of
> > > Frank
> > > Sent: 04 January 2007 12:53
> > > To: ccielab@groupstudy.com
> > > Subject: ospf wildcard bits
> > >
> > >
> > >
> > > Hi,
> > >
> > >
> > >
> > > what does it mean if i have configure ospf network
> > > statements to "match
> > >
> > > the interface exaclty"?
> > >
> > >
> > >
> > > interface s0/0
> > >
> > > ip add 150.1.1.1 255.255.255.0
> > >
> > >
> > >
> > > router ospf 1
> > >
> > > netwo 150.1.1.1 0.0.0.0
> > >
> > >
> > >
> > > or
> > >
> > >
> > >
> > > router ospf 1
> > >
> > > netwo 150.1.1.1 0.0.0.255
> > >
> > >
> > >
> > > The first configuration does match the ip address
> > > exactly and the second
> > >
> > >
> > > does match the netmask directly.
> > >
> > > What should you choose. I know both are valid, but
> > > what would be the
> > >
> > > right one regarding to "exaclty
> > >
> > > match the interface"?
> > >
> > >
> > >
> > >
> > >
> > > Frank
> > >
> > >
> > >
> > >
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>
>
> --
> Narbik Kocharians
> CCIE# 12410 (R&S, SP, Security)
> CCSI# 30832
> Network Learning, Inc. (CCIE class Instructor)
> www.ccbootcamp.com (CCIE Training)
-- Narbik Kocharians CCIE# 12410 (R&S, SP, Security) CCSI# 30832 Network Learning, Inc. (CCIE class Instructor) www.ccbootcamp.com (CCIE Training)
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