From: Lupi, Guy (Guy.Lupi@xxxxxxxxxxxxx)
Date: Sat Jun 29 2002 - 17:24:43 GMT-3
I don't know that you should be too concerned about how they want you to do
it because I don't think they have a "preferred method", but definitely
understand how the command works. I don't think they would be overly
concerned that you added in the whole range on the lab, unless they told you
to be as specific as possible with your network statements. I would just
pick one method and stay with it. In practice, in order to avoid problems
when people enter the wrong network statement wildcard mask, I prefer to use
"passive-interface default". This forces each interface on which you want
to run OSPF to be specifically stated in the configuration.
Guy
~-----Original Message-----
~From: Ahmed Al-Ghawas [mailto:ghawas@batelco.com.bh]
~Sent: Saturday, June 29, 2002 3:37 PM
~To: ccielab@groupstudy.com
~Subject: OSPF wildcard bits
~
~
~Guys,
~
~I am really getting confused!
~
~From what I understood from "CCIE Practical Studies" book that
~when using the
~network command, that you ought to be precise in the extent
~that you would add
~the interface ip address and not advertise the whole subnet mask!
~
~For example:
~
~R1
~S0:10.1.128.1/24
~|
~|
~S0:10.1.128.2/24
~R2
~S1:10.1.80.1/24
~|
~|
~S1:10.1.80.3/24
~R3
~
~R1 config:
~router ospf 2001
~network 10.1.128.1 0.0.0.0 area x (and not; network 10.1.128.0
~0.0.0.255 area
~x!!)
~
~R2 config:
~router ospf 2001
~network 10.1.128.2 0.0.0.0 area x (and not; network 10.1.128.0
~0.0.0.255 area
~x!!)
~network 10.1.80.1 0.0.0.0 area x (and not; network 10.1.80.0
~0.0.0.255 area
~x!!)
~
~R3 config:
~router ospf 2001
~network 10.1.80.3 0.0.0.0 area x (and not; network 10.1.80.0
~0.0.0.255 area
~x!!)
~
~I really need to stick to one concept and understand why this
~book doest it
~differently then the other and avoid loosing marks for such
~stupid thing in
~the real lab!!
~
~Any input is much appreciated
~
~Ahmed
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