From: getmo1 (getmo1@126.com)
Date: Wed Jan 31 2007 - 04:12:23 ART
No matter what mask you provided for loopback, it will consider it is a /32
network address.
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
Andrew Larkins
Sent: Wednesday, January 31, 2007 2:39 PM
To: steve; Edouard Zorrilla; ccielab@groupstudy.com
Cc: security@groupstudy.com
Subject: RE: OSPF configuration explanation Lookpback 0
Hi,
Late in on this one, but the point to point network types advertises the
actual mask as I understand it and not the default /32
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
steve
Sent: 30 January 2007 15:56
To: 'Edouard Zorrilla'; ccielab@groupstudy.com
Cc: security@groupstudy.com
Subject: RE: OSPF configuration explanation Lookpback 0
My understanding is that:
Check the ospf database, for loopback, OSPF treat it as a stub network, and
so the network mask is 255.255.255.255.
If i can the network type to point-to-point, ospf will treat it as a transit
network, then the network mask sets according to the interface's network
mask.
Regards
Steve
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
Edouard Zorrilla
Sent: 2007Dj1TB30HU 20:53
To: ccielab@groupstudy.com
Cc: security@groupstudy.com
Subject: OSPF configuration explanation Lookpback 0
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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