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GNS3 Lab & Exercise: GNS3-Labs BSCI Lab OSPF Stub, Total Stub Areas & Route Redistribution

Written by LBSources from http://www.gns3-labs.com on April 9th, 2010 | 1 Comment

Ok - So here is another CCNP BSCI / CCNA lab challenge. This lab is part of Chris Bryant’s CCNP lab manual.

This is my second visit to these labs after completing the reading material and not having to look at a single bit of the guide for help to config this up! Impressive to me, but I do realize these labs are quite simple. Nevertheless; they are labs I had no knowledge on how to config 5 months ago (to this extent) so I’m happy :-)

No lab is too simple in my opinion - any labbing is good labbing! As I understand it knowledge in labs like these are sufficient enough. I enjoy labs that aren’t overly complicated, while allowing you to get comfortable with commands and such. Take advantage now, cause the CCIE level labs are not as nice! With that said, master these labs and you should be able to pass the CCNP BSCI/ROUTE exams, or at least we hope :)

So if you didn’t check out the first part of this lab, you can find it here. That lab will allow you to configure the core part of this lab from step 1. The configs included in the archive here are the initial configs already applied to the routers. There is a text file that contains the lab objectives similar to below, as well as the solutions to this lab.

Try not to cheat! :) Don’t look at the solutions file until you absolutely need to.. If you’ve broken your keyboard, monitor and cursed out a router and protocol that wont answer you - I forgive you, go ahead and peak at the solutions file :)

Onto the lab!

Routers Used:3640 & 3725

IOS:c3640-ik9o3s-mz.124-17a & c3725-adventerprisek9-mz.124-15.T10

Feature of Topology: Multi-Area OSPF, Hub-and-Spoke & Virtual Links, Stub, Total Stub Areas, Route Redistribution & Summary

Image:

BSCI Lab - OSPF Stub, Total Stub Areas, Route Redistribution & Summary

Lab Objectives

1
-Observe the routing tables on R4
-Observe the routing tables on R1
-Remove the virtual-link between R3 and R4
-Remove Area 4 from OSPF on R4
-Observe the routing tables on R4
-Observe the routing tables on R1
-From R4 ping all interfaces on R1, R2 and R3

2
-Create loopback 12 with IP 12.12.12.12/24 on R1
-Create loopback 13 with IP 13.13.13.13/24 on R1
-Create loopback 14 with IP 14.14.14.14/24 on R1
-Create loopback 14 with IP 15.15.15.15/24 on R1
-Redistribute the newly created loopbacks into OSPF - Remember classful subnets isnt want we want redistributed with the new networks

3
-Observe R4’s routing table - the loopback interfaces particularly
-Reconfigure redistribution of the same loopbacks so that that E2 routes become E1 routes giving the toal cost of the path from the local router to the destination
-Observe R4’s routing table - the loopback interfaces particularly
-Reconfigure redistribution of the same loopbacks to be E2 routes again
-Observe R4’s routing table - the loopback interfaces particularly

4
-Configure Area 34 as a stub area
-Observe the routing table of R4
-From R4 ping the loopback interfaces of R1, R2 and R3
-Configure Area 34 as a total stub area
-Observe the routing table of R4

5
-Reconfigure Area 34 as a normal area - No stub or total stub configurations
-Remove any redistribution configuration on R1
-Reconfigure loopback 12 with IP 12.12.12.12/8 on R1
-Reconfigure loopback 13 with IP 13.13.13.13/8 on R1
-Reconfigure loopback 14 with IP 14.14.14.14/8 on R1
-Reconfigure loopback 15 with IP 15.15.15.15/8 on R1
-Place loopbacks 12, 13, 14 and 15 into OSPF Area 1
-Observe the routing table of R2 - particularly the loopbacks on R1
-Configure area range commmand on R1 to summarize the new loopback routes - Which command do you use? Summary-address OR area-range?
-Observe the routing table of R2 - particularly the summarized routes for the loopbacks on R1
-Ping 12.12.12.12 from R2 - Success?

6
-Create loopback 16 with IP 16.16.16.16/8
-Create loopback 17 with IP 17.17.17.17/8
-Create loopback 18 with IP 18.18.18.18/8
-Create loopback 19 with IP 19.19.19.19/8
-Redistribute the new loopbacks into OSPF as E2 routes - we dont want classful routes
-Observe the routing table of R2 - particularly the new loopbacks of R1
-Summarize the networks you just redistributed into OSPF - Which command do you use? Summary-address OR area-range?
-Observe the routing table of R2 - particularly the summary route for the (16-19) loopbacks on R1

Download: GNS3-Labs BSCI Lab OSPF Stub, Total Stub Areas & Route Redistribution

Cheers and Happy Labbing!

LBS :)

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One Response to “GNS3 Lab & Exercise: GNS3-Labs BSCI Lab OSPF Stub, Total Stub Areas & Route Redistribution”

  1. ravikumar ravikumar

    gns3is a very good network simulator for learners to make perfect in labs

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