From: Ronnie Angello (ronnie.angello@gmail.com)
Date: Tue Jan 30 2007 - 10:38:37 ART
The default OSPF network type on a loopback interface is LOOPBACK, which
must be advertised as /32. The point-to-point network type forces OSPF to
advertise the subnet address of the loopback.
Ronnie
On 1/30/07, Edouard Zorrilla <ezorrilla@tsf.com.pe> wrote:
>
> Hello Group,
>
> Is there any explanation why when I set the interface loopback 0 as a "ip
> ospf
> network point-to-point":
>
> Rack1R2(config)#int lo0
> Rack1R2(config-if)#ip ospf network point-to-point
>
> It is being learned as a /24 instead a /32:
>
> 150.1.0.0/24 is subnetted, 2 subnets
> O 150.1.2.0 [110/65] via 163.1.12.2, 00:00:05, Serial0/3/0
> Rack1R1#
>
> I mean which caracteristic of the point-to-point network make it is being
> shown as a /24 ?
>
> Regards
>
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