From: Chua, Parry (Parry.Chua@xxxxxxxxxx)
Date: Tue Dec 11 2001 - 23:15:41 GMT-3
Hi,
Configuration in OSPF is flexibale but you has to be careful on what you
do,
Let said you are lazy and you want all interfaces from this router to be
in area xxx
then one configuration command will do:
Router ospf 1
netw 0.0.0.0 255.255.255.255 arae xxx
Some time later, you decide to modify and has a new area yyy on ip
address 1.1.1.1/24
so you modify the configuration
Router ospf 1
netw 0.0.0.0 255.255.255.255 area xxx
netw 1.1.1.0 0.0.0.255 area yyy
HEY, problem, you will notice that 1.1.1.x will remain in area xxx,
reason is top down
like access list configuration.
You need to make the following changes :
Router ospf 1
netw 1.1.1.0 0.0.0.255 area yyy
netw 0.0.0.0 255.255.255.255 area xxx
In order not to have the above problem, once would just configure the
interface
ip address to the ospf area which it belong.
Regards
Parry
Now let said you have design your network and ospf in difeerent area,
let assume you
have n
-----Original Message-----
From: MOLINA, MARTIN J *Internet* (PBI) [mailto:mm1343@pbi.net]
Sent: Tuesday, December 11, 2001 8:52 AM
To: 'Nguyen, Thai'; ccielab@groupstudy.com
Subject: RE: Defining network number under ospf process
Thai,
The first statement(network 1.1.1.1 0.0.0.0 area 1) basically says "int
e0
participates in the OSPF process in area 1".
The second statement(network 1.1.1.0 0.0.0.255 area 1)basically says
"all
interfaces in the 1.1.1.0/24 network participate in the OSPF process in
area
1.
Good luck!
-----Original Message-----
From: Nguyen, Thai [mailto:Thai.Nguyen@auspost.com.au]
Sent: Monday, December 10, 2001 4:07 PM
To: ccielab@groupstudy.com
Subject: Defining network number under ospf process
Hi all
I am having trouble of knowing the difference between the following
configuration.
int e0
ip add 1.1.1.1 255.255.255.0
router ospf 1
network 1.1.1.1 0.0.0.0 area 1
router ospf 1
network 1.1.1.0 0.0.0.255 area 1
Can anyone offer me an advise.
Thanks.
Thai Nguyen
Senior Networking Engineer
IT Delivery
Australia Post
03 9204 5309
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