From: Hoyle, Anthony (AL) (ALHoyle@dow.com)
Date: Sat Nov 15 2003 - 10:09:04 GMT-3
Does this answer your question: (I set it up really quick , that is an oddball question...)
The only time I use the 0.0.0.0 mask is with Loopback interfaces /w 32 bit masks...
(Note- This loopback has a /24 bit mask)
R9#show ip int brief lo12
Interface IP-Address OK? Method Status
Protocol
Loopback12 175.50.11.1 YES manual up
up
R9#config t
Enter configuration commands, one per line. End with CNTL/Z. R9(config)#router ospf 99 R9(config-router)#network 175.50.11.1 0.0.0.0 area 0 R9(config-router)#^Z R9#show ip ospf interface Loopback12 is up, line protocol is up
Internet Address 175.50.11.1/24, Area 0
Process ID 99, Router ID 175.50.100.1, Network Type LOOPBACK, Cost: 1
Loopback interface is treated as a stub Host
R9#
Anthony Hoyle
WAN Infrastructure Analyst
EDS
-----Original Message-----
From: Adminl@kuix.com [mailto:Adminl@kuix.com]
Sent: Saturday, November 15, 2003 6:33 AM
To: ccielab@groupstudy.com
Subject: Wildcard mask on OSPF
Dears..
Can I configure on ospf with network command (0.0.0.0 wildcard mask)?
int loopback 0
ip ad 183.1.45.4 255.255.255.0
!
int s0
ip ad 183.1.46.4 255.255.255.224
!
router ospf 1
network 183.1.45.4 0.0.0.0 area 45
network 183.1.46.4 0.0.0.0 area 46
I think it should match the subnet mask of the interface!!!
router ospf 1
network 183.1.45.4 0.0.0.255 area 45
network 183.1.46.4 0.0.0.31 area 46
in case 0.0.0.0 is right ..Is it will be correct on real LAB exam..or I will loose points?
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