From: Guyler, Rik (rguyler@shp-dayton.org)
Date: Thu Jan 04 2007 - 11:49:40 ART
I agree with what you're saying but that's not what was given up front:
interface s0/0
ip add 150.1.1.1 255.255.255.0
In your scenario and my interpretation, the network statement would now read
as "network 150.1.1.0 0.0.0.3" and would still only put s0/0 into the OSPF
process.
Rik
_____
From: ccie anees [mailto:ccieanees@yahoo.com]
Sent: Thursday, January 04, 2007 9:45 AM
To: R S; Guyler, Rik; ccielab@groupstudy.com
Subject: RE: ospf wildcard bits
Well
we can use the following ips in the interfaces
int fa 0/0
ip address 150.1.1.1 255.255.255.252
int fa 0/1
ip address 150.1.1.5 255.255.255.252
So if you configure network 150.1.1.1 0.0.0.255 it is going to enable on
both the interfaces..
so network 150.1.1.1 0.0.0.0 will be correct.
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" 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
>
> ( 023 8083 4070 7 077 8811 2036 3 079 5825 7509
>
> * olayemi.salau@southampton.gov.uk
>
> _________________________________________________
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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
>
>
>
>
This archive was generated by hypermail 2.1.4 : Thu Feb 08 2007 - 23:46:55 ART