From: Dinesh Patel (jedidinesh@googlemail.com)
Date: Tue Dec 30 2008 - 08:20:23 ARST
wow... thanks for the correct, so enable ospf on the interface does not do
the "full works".... I could have lost points on this for ages!
On Tue, Dec 30, 2008 at 9:39 AM, Piotr M <pitt2k@gmail.com> wrote:
> Not true. When you do that, the Loopback interface has still OSPF
> LOOPBACK network type, so it still advertises prefix as /32.
>
> Topo: R3 -- R4
>
> R4#sh run int lo0
> Building configuration...
>
> Current configuration : 79 bytes
> !
> interface Loopback0
> ip address 4.4.4.4 255.255.255.0
> ip ospf 1 area 0
> end
>
> R4#sh ip ospf int lo0
> Loopback0 is up, line protocol is up
> Internet Address 4.4.4.4/24, Area 0
> Process ID 1, Router ID 4.4.4.4, Network Type LOOPBACK, Cost: 1
> Enabled by interface config, including secondary ip addresses
> Loopback interface is treated as a stub Host
>
>
> R3#sh ip ro 4.4.4.4 255.255.255.0
> % Subnet not in table
>
> R3#sh ip ro 4.4.4.4 255.255.255.255
> Routing entry for 4.4.4.4/32
> Known via "ospf 1", distance 110, metric 2, type intra area
> Last update from 10.1.1.4 on FastEthernet0/0, 00:00:49 ago
> Routing Descriptor Blocks:
> * 10.1.1.4, from 4.4.4.4, 00:00:49 ago, via FastEthernet0/0
> Route metric is 2, traffic share count is 1
>
>
> Cheers,
> PM
>
>
> 2008/12/30 Dinesh Patel <jedidinesh@googlemail.com>:
> > How sure are we on this. If you advertise the loopback by doing:
> > int loop 0
> > ip ospf 1 area x
> >
> > then that fulfills the lab requirements to advertise the loopback and
> also
> > gives a correct mask. I don't see how they could deduct points for this.
> Any
> > views?
> >
> > Dinesh
> >
> >
> > On Mon, Dec 29, 2008 at 6:20 PM, Piotr M <pitt2k@gmail.com> wrote:
> >>
> >> John,
> >>
> >> You need to configure ONLY those things which are clearly specified in
> >> the task or in global "pre-tasks/ to do" section on the exam. If you
> >> do something more/less you will loose your points.
> >>
> >> HTH,
> >> PM
> >>
> >> 2008/12/29 John Edom <jedom123@gmail.com>:
> >> > Hi,
> >> >
> >> > while OSPF configuration task, when we advertise loopback, network
> type
> >> > should be configured point-to-point (for the sake of actual subnet
> mask)
> >> > or
> >> > configured only if task ask for it? If there any situation where task
> >> > doesnt
> >> > ask directly for this configuration but we have to ?
> >> >
> >> > Regards
> >> >
> >> >
> >> > Blogs and organic groups at http://www.ccie.net
> >> >
> >> >
> _______________________________________________________________________
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> >>
> >>
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> >>
> >> _______________________________________________________________________
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