Enabling OSPF using minimum network statements

March 9, 2008 @ 11:09 am · Filed under CCIE Study

Hi,
My ans is ” network 154.1.1.3 0.0.254.0 area 0″. The reason is 3rd Octet last bit must be “1″. Correct me i’m wrong.
Rgds, Sam
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From: nobody@groupstudy.com on behalf of Tony Schaffran (GS) Sent: Sun 3/9/2008 9:35 PM To: ‘YourPal’; ‘Cisco certification’ Subject: RE: Enabling OSPF using minimum network statements

There may be something wrong with your lab requirement for that particular question.
Normally, they are looking for a number less than just adding each one individually. With the networks you have, it is not possible to summarize without including interface S0/0. The other four networks do not have a bit in common.
Now, maybe they are trying to trick you and get you to put a summarization by mistake.
What does your solution say?
Tony Schaffran Network Analyst CCIE #11071 CCNP, CCNA, CCDA, NNCDS, NNCSS, CNE, MCSE
www.cconlinelabs.com Your #1 choice for online Cisco rack rentals.
—–Original Message—– From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of YourPal Sent: Sunday, March 09, 2008 5:24 AM To: Cisco certification Subject: Enabling OSPF using minimum network statements
Hi Group,
A router has the following IP addresses:
! interface FastEthernet0/0 ip address 154.1.38.3 255.255.255.0 ! interface FastEthernet0/1 ip address 154.1.3.3 255.255.255.0 ! interface Serial0/0 ip address 154.1.0.3 255.255.255.0 ! interface Serial0/2 ip address 154.1.13.3 255.255.255.0 ! interface Serial0/3 ip address 154.1.23.3 255.255.255.0 !
The task requires to enable OSPF area 0 on interfaces Fa0/1, s0/2, and s0/3 using the minimum amount of network statements necessary. Do not enable area 0 on any other interfaces.
As hard as I tried, I’m not able to use minimum network statements to cover those 3 interfaces without covering s0/0. So I configured 3 statements as follows (to me, this is the min.):
! router ospf 1 network 154.1.3.3 0.0.0.0 area 0 network 154.1.13.3 0.0.0.0 area 0 network 154.1.23.3 0.0.0.0 area 0 !
Let me know if you have a solution that meets the task requirement.
Thank you.
BR, Emil