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Re: Reward Offered to first person with correct answer to ospF problem posted 07/19/2003
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I think area 0 range only generate a summary route into other areas, not the
area 0 itself.
maybe you can create a Loopback in another area on R2?

----- Original Message -----
From: "ccie2be" <ccie2be@xxxxxxxxxx>
To: "Group Study" <ccielab@xxxxxxxxxxxxxx>; "Jonathan V Hays"
<jhays@xxxxxxxx>
Sent: Friday, July 18, 2003 1:34 PM
Subject: Re: Reward Offered to first person with correct answer to ospF
problem


> Hi Johnathan,
>
> The issue in this scenario isn't IGRP; it could have just as well been rip
> v1.  The problem has to do with summarizing a a subnet so that it can be
> redistributed into a classful routing protocol.
>
> Regarding the reward, I realize that not everybody lives in the NYC area,
> however, since there's no stature of limitation and NYC is one of the most
> visited cities in the world, I suspect the winner will at some point be in
> NYC to claim their justly deserved reward.  There's even the possibility
> that if by the time the winner claims their reward I happen to have passed
> the lab, my wife will feel such graditude she might even throw in a
gourmet
> dinner.  :-)
>
> Here's a copy of the original post:
>
>
> Rtr1, rtr2, and rtr3 are ospf backbone routers connected via f/r
> 172.16.123.0/29 with rtr2 as the hub.
>
> rtr2 is also redistributing routes into igrp.  Since igrp is classful, the
> subnet 172.16.123.0/29 is being summarized into a /24 with the command,
> "area
> 0 range 172.16.123.0 255.255.255.0" on rtr1, rtr2 and rtr3.
>
> On both rtr1 and rtr3, in the routing table there's the entry,
>  "o   172.16.123.0/24 is a summary ..... null 0",
>
> However, there's no such entry on rtr2.
>
> In addition, on rtr2, in the output of "show ip ospf"  it has the
following,
>
>         Area Backbone (0)
>         <text omitted>
>         Area Ranges are
>             172.16.123.0/24  Passive Advertise
>
>
> rtr2 config:
>
> int s0.123 multi
> ip addr 172.16.123.2 255.255.255.248
> fram map ip 172.16.123.1 221 broad
> fram map ip 172.16.123.3 223 broad
> ip ospf priority 5
>
>
> router ospf 1
> net 172.16.123.0 0.0.0.7 area 0
> area 0 range 172.16.123.0 255.255.255.0
> redist igrp 1 subnet
>
>
> In addition, sh ip os nei on rtr2 shows that rtr1 and rtr3 are neighbors
and
> all other summarized subnets are succesfully being redistributed into
IGRP.
> (Rtr 2 is connected to rtr4 which is running only IGRP and the route table
> on rtr4 shows that all subnets except 172.16.123.0/24 are being learned
from
> rtr2
>
>
> Why is that?  I want 172.16.123.0/24 to be advertised.  In fact, the
reason
> 172.16.123.0/24 is being summarized is so that it can be redistributed
into
> igrp.
> Other subnets are being summarized and redistributed into igrp just fine.
> What needs to be done so that 172.16.123.0/24 is not "Passive Advertise"?
> I've been trying different things to fix this for hours, but without any
> success.  Please end my misery and confusion.
>
> ----- Original Message -----
> From: "Jonathan V Hays" <jhays@xxxxxxxx>
> To: "'ccie2be'" <ccie2be@xxxxxxxxxx>; "'Group Study'"
> <ccielab@xxxxxxxxxxxxxx>
> Sent: Friday, July 18, 2003 1:31 PM
> Subject: RE: Reward Offered to first person with correct answer to ospF
> problem
>
>
> Raj,
>
> Since very few of us live in that area, I think a couple of thousand US
> dollars via PayPal would be a more reasonable reward, don't you?  <G>
>
> If you have limited time and are spending it in serious preparation for
> the CCIE R&S lab exam, I have to ask: why even bother with IGRP? The
> IGRP protocol has not been on any CCIE Lab since October 31, 2002. Cisco
> specifically says it won't be on the lab here:
> http://www.cisco.com/en/US/learning/le3/le2/le23/le7/learning_certificat
> ion_type_home.html
>
> If you really want help with this scenario, please post complete,
> unedited configurations of all three routers, along with "sh ip route".
> Doing that is more likely to get people interested in your problem
> because we won't be playing a back-and-forth guessing game about how you
> have everything configured.
>
> Post your configs.
>
> Jonathan
>
> -----Original Message-----
> From: nobody@xxxxxxxxxxxxxx [mailto:nobody@xxxxxxxxxxxxxx] On Behalf Of
> ccie2be
> Sent: Friday, July 18, 2003 12:53 PM
> To: Group Study
> Subject: Reward Offered to first person with correct answer to ospF
> problem
>
>
> Hi group,
>
> This morning at 9:01, I posted an ospf problem regarding summarizing an
> area 0
> subnet so that it can be redistributed into igrp.  This problem
> continues to
> baffle me, so I am offering a reward of free drinks to the first person
> who
> provides the correct solution and a clear explanation.  The reward can
> be
> collected at your choice of any establishment in Manhattan or Queens
> (other
> NYC tri-state locations are also possible).
>
> I've spent too many hours on this problem and I need to move on to other
> labs,
> but I'd like to understand what the #$%&*(        is going on before
> starting
> on something else.
>
> See my post (from ccie2be re: OSPF passive advertise)  for a full
> description
> of the problem and feel free to request additional info if anything is
> unclear.  Raj
>
>
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