OT - Corrected version of the previous Puzzle

From: Narbik Kocharians <narbikk_at_gmail.com>
Date: Tue, 9 Nov 2010 09:56:34 -0800

R1 (10.1.1.1/24 - F0/0) ----------------------------------------- (F0/0 
10.1.1.2/24) R2

*R1 is configured to inject two candidate default routes:*

*On R1*

* *

*R1#Show run int lo0 | B inter*

interface Loopback0

 ip address 1.1.1.1 255.0.0.0

*R1#Show run int lo1 | B inter*

interface Loopback1

 ip address 2.2.2.2 255.0.0.0

*R1#Show run | Inc ip default*

ip default-network 1.0.0.0

ip default-network 2.0.0.0

*R1#Show run | s eigrp *

router eigrp 100

 network 1.0.0.0

 network 2.0.0.0

 network 10.1.1.1 0.0.0.0

 no auto-summary

*R2 sees two Candidate default routes:*

*On R2*

*R2#Show ip route eigrp*

D* 1.0.0.0/8 [90/156160] via 10.1.1.1, 00:04:37, FastEthernet0/0

D* 2.0.0.0/8 [90/156160] via 10.1.1.1, 00:04:37, FastEthernet0/0

* *

*Puzzle #2*

R2 should be configured to see Both (1.0.0.0/8 and 2.0.0.0/8) networks, but
it should ONLY use network 2.0.0.0 as candidate default.

* *

*Restrictions:*

R2 should have networks 1.0.0.0/8 and 2.0.0.0/8 in its routing table
reachable via R1.

DO NOT configure R1.

You should use an access-list as part of the solution on R2 to accomplish
this task.

DO NOT use another global config command on R2 besides the access-list.

DO NOT use PBR, or IP SLA.

DO NOT configure another interface on R2.

--
*Narbik Kocharians
*CCSI#30832, CCIE# 12410 (R&S, SP, Security)
www.MicronicsTraining.com <http://www.micronicstraining.com/>
Sr. Technical Instructor
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Received on Tue Nov 09 2010 - 09:56:34 ART

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