From: CCIE3000 (ccie3000@googlemail.com)
Date: Tue Jul 29 2008 - 04:52:10 ART
Yep, Ibrahim has explained it.
The tunnel isn't terminated onto the router which is an internal router of
area 1 (I think).
The tunnel is terminated on a ABR of area 1 so that the area range command
can be used on both ABR's of area 1, hence you don't break the summary of
the loopbacks.
If you use virtual-links then you can get your network running okay, but you
will break the task where it says you need to summarise the loopbacks.
Si
On 7/29/08, Ibrahim kabir <kebramccie@live.com> wrote:
>
>
> if I could remember clearly. The task says R3 should c a summary of the
> loopbacks from area 0. A Virtual-link through that area will definately make
> the Router R3 a memeber of area 0 by extension. That part of the solution I
> guess is quite clear.
>
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> To anwer as to why a tunnel was used, I guess by tunnelling fron the ABR's
> of area 0 and area 2 in turn makes router R1 a member of area 0 coz ospf
> area 0 is running over the tunnel. Mind you it doesnt in anyway make the
> internal ospf router R3 part of that area.
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> And dnt forget on The other ABR R1 to do the are 0 range command
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> Kabir K Ibrahim
> B.sc CCNA CCNP CCDA CCDP MCP
>
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