From: Tom Rogers (cccie71@yahoo.com)
Date: Sun Jul 11 2004 - 05:21:40 GMT-3
JB,
network command for ospf is per interface. You can use either of the commands, it all depends on you. How many interfaces U need to combine in statement or U want to keep separate command for each line, chice is yours. It's basically a question of administrative overhead.
You can read this in OSPF Design Solution or OSPF command and configuration Handbook.
As for your ospf default route read the following link upside down.
http://www.cisco.com/en/US/tech/tk365/tk480/technologies_tech_note09186a0080094a74.shtml
Tom
barrerj1@hotmail.com wrote:
Thanks to all for your responses
In the lab I will pay close attention to the requirements and do only
what they ask me to do.
JB
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
Pierre-Alex Guanel
Sent: Saturday, July 10, 2004 4:24 PM
To: barrerj1@hotmail.com; ccielab@groupstudy.com
Subject: Re: OSPF questions
Hi ,
1) I would be as precise as possible and use the 0.0.0.255
In some cases you need the forwarding address to be in the lsa and it
does
not work when using 0.0.0.0
2) the first example nssa, you MUST specify a default. The ABR won't
generate one by itself. The logic I have is that
the default-route maybe coming from the other routing protocol
(injected
in the nssa) or from OSPF itself. Since OSPF can't
know, it requires you to specify
in the second example totally stubby , the only way you would be
able
to get to other OSPF areas is by a default , so OSPF automatically
create
the default for you. No choice there
It all depends what the lab requirements are....
Hope this is clear,
Pierre
----- Original Message -----
From:
To:
Sent: Saturday, July 10, 2004 7:06 PM
Subject: OSPF questions
> When doing OSPF what is the best approach for the following
statements?
>
> I like the first option best and both accomplished the same solution,
> but I'm not sure.
>
>
>
>
>
> Router ospf 10
>
> Router-id 10.1.1.1
>
> Network 10.10.10.1 0.0.0.0 area 0
>
>
>
> Or
>
>
>
> Router ospf 10
>
> Router-id 10.1.1.1
>
> Network 10.10.10.0 0.0.0.255 area 0
>
>
>
> Additionally,
>
>
>
>
>
>
>
> When the requirement in OSPF dictates to include a default route in an
> OSPF nssa area, with two routers I have two choices:
>
>
>
> Area 10 nssa default-information-originate
>
>
>
> Or
>
>
>
> Area 10 nssa no-summary
>
>
>
>
>
> Can someone explain the difference?
>
>
>
> Thanks
>
> Jojo
>
>
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