From: anthony.sequeira@thomson.com
Date: Mon Apr 30 2007 - 12:35:25 ART
Great catch - here is the show ip route from R2
R2#show ip route
Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2
i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS
level-2
ia - IS-IS inter area, * - candidate default, U - per-user static
route
o - ODR, P - periodic downloaded static route
Gateway of last resort is 42.42.42.4 to network 0.0.0.0
1.0.0.0/24 is subnetted, 1 subnets
D 1.1.1.0 [90/5639936] via 12.12.12.1, 5d19h, Serial0/0/1
2.0.0.0/24 is subnetted, 1 subnets
C 2.2.2.0 is directly connected, Loopback10
172.16.0.0/24 is subnetted, 1 subnets
C 172.16.2.0 is directly connected, Loopback0
42.0.0.0/24 is subnetted, 1 subnets
C 42.42.42.0 is directly connected, FastEthernet0/0
10.0.0.0/24 is subnetted, 3 subnets
D 10.10.10.0 [90/5639936] via 12.12.12.1, 2w3d, Serial0/0/1
D 10.10.20.0 [90/5639936] via 12.12.12.1, 2w3d, Serial0/0/1
D 10.10.30.0 [90/5639936] via 12.12.12.1, 2w3d, Serial0/0/1
12.0.0.0/24 is subnetted, 1 subnets
C 12.12.12.0 is directly connected, Serial0/0/1
O*IA 0.0.0.0/0 [110/2] via 42.42.42.4, 1w3d, FastEthernet0/0
R2#
We will update the answer accordingly.
From: Uchil Perera [mailto:uchil.groupstudy@yahoo.com]
Sent: Monday, April 30, 2007 10:59 AM
To: Sequeira, Anthony (NETg); Sequeira, Anthony (NETg);
ccielab@groupstudy.com
Subject: Re: CCIE Certification Question of the Week - APR2707
Hi,
If I understand this properly, according to the description, R2 is
redistributing EIGRP learned routes from R1 in to the OSPF domain, hence
R2 is the ASBR. Since R2 is learning these routes through EIGRP (AD -
90) these routes should appear in R2's routing table as "D". The
"no-summary" is configured on R4 (ABR) and block's "Type 5 LSA's" from
area0 being flooded to area 20.
I think the answer should be
1-B, 2-B, 3-A, 4-C
Like to hear your thoughts
Regards
anthony.sequeira@thomson.com wrote:
LAST WEEK'S ANSWER:
Answer: e
Topic Domain: 4a
Issues:
How will the routes appear on each router in this topology?
Solutions:
The routes appear as the native EIGRP on R1. On R2 the specific
routes
will not appear as the result of the no-summary configuration
for the
area. On R3 the routes appear as E2 and on R4 they appear as N2
due to
the NSSA configuration.
More Information:
Configuring OSPF NSSA
http://www.cisco.com/univercd/cc/td/doc/product/software/ios124/124cg/hi
rp_c/ch15/1chospf.htm#wp1001252
LAST WEEK'S QUESTION:
4-11-9. You have the OSPF topology shown in Exhibit 1. R2 is
redistributing EIGRP routes learned from R1 into Area 20. Use
Exhibit 2
to match the routing table designator for these routes as it
will appear
on each router. You may use each option more than once, and you
might
not use all options.
a. 1-B, 2-A, 3-C, 4-D
b. 1-B, 2-C, 3-A, 4-C
c. 1-D, 2-A, 3-A, 4-A
d. 1-D, 2-C, 3-C, 3-C
e. 1-B, 2-D, 3-A, 4-C
Exhibit 1
R1-----R2-----Area 20 Totally NSSA-----R4-----Area 0-----R3
Exhibit 2
1. R1
2. R2
3. R3
4. R4
A. O E2
B. D
C. O N2
D. Will Not Appear
THIS WEEK'S QUESTION:
2.3.1 What is the port state that a BPDU Guard port will enter
upon
receiving a BPDU?
a. Shutdown
b. Port-inconsistent
c. Error-disabled
d. Learning
e. Listening
Question of the Week Compliments of:
TESTiT from NetMasterClass
http://www.netmasterclass.com/site/written.php
Copyright 2002-2007 NetMasterClass, LLC
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