Swinburne University of Technology Faculty of Information and Communication Technologies HIT2125 Data Communications and Computer Networks Network Case.

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Swinburne University of Technology Faculty of Information and Communication Technologies HIT2125 Data Communications and Computer Networks Network Case Study 2 - The Concept of IP Subnetting (Document 13) Semester 1, 2007 Sample Only

HIT2125 Semester Network Case Study 2 - The Concept of IP Subnetting The tutor keeps this sheet as record of completion Due Date: By end of academic week 9. Student Name: __________________________________________ Student Id: ____________________ Marks: 5 towards the Unit Result You must demonstrate to your tutor that you have completed the case study Tutor Name: ____________________________________________ Tutor Signature: _____________________ Date: _____________

HIT2125 Semester Network Case Study 2 -The Concept of IP Subnetting The student keeps this sheet Student Name: __________________________________________ Student Id: ____________________ Marks: 5 towards the Unit Result You must demonstrate to your tutor that you have completed the case study Tutor Name: ____________________________________________ Tutor Signature: _____________________ Date: _____________

4 Packet Tracer V4.01 A simulation product for the designing, and testing of a network before its implementation on the actual hardware devices.

5 Brisbane Router Adelaide Router Bris_Hub Adel_Hub Subnet 92Subnet 85 Network Address /18 UTP Cable Serial Cable Bris PC Adel PC Network Case Study 2 – The Concept of IP Subnetting Fa 0/0 S 2/0 DCE Subnet 152 Host 262 Host 520

6 Brisbane Router - Configuration ! The FastEthernet interface configuration: interface fa 0/0 ip address description Link to Brisbane Hub, Subnet 85 no shutdown ! The Serial interface configuration: interface serial 2/0 ip address ! This is DCE end of the link clock rate description Link to Adelaide Router, Subnet 152 no shutdown ! Set hostname of the router hostname Brisbane

7 Brisbane PC - Configuration Set the PC’s IP address to address of Host 262 Set PC’s subnet mask to Set PC’s gateway IP address

8 Adelaide Router - Configuration ! The FastEthernet interface configuration: interface fa 0/0 ip address description Link to Adelaide Hub, Subnet 92 no shutdown ! The Serial interface configuration: interface serial 2/0 ip address description Link to Brisbane Router, Subnet 152 no shutdown ! Set hostname of the router hostname Adelaide

9 Adelaide PC - Configuration Set the PC’s IP address to address of Host 262 Set the PC’s subnet mask to Set the PC’s gateway IP address

10 Link (Point-to-Point) Testing Use the ping command to test each link is working Note you cannot ping from the Brisbane PC to the Adelaide PC, Why is this the case?

11 Routing Protocols Brisbane Router router rip version 2 no auto-summary network Adelaide Router router rip version 2 no auto-summary network

12 Path (End-to-End) Testing Use the ping, and traceroute commands to test a path exists between the Brisbane PC and the Adelaide PC If a path exists, Why is this the case?

13 Discussion Points Concept of IP Subnetting –IP Address Classes –Classful Address –Two Level Classful Hierarchy Network-Prefix, Host-Number Routing tables growing in size Local administrators had to request another network number, before a new network could be installed at their site

14 Discussion Points Concept of IP Subnetting –Three Level Subnet Hierarchy Network Prefix, Subnet-Number, Host-Number Subnet structure not visible to external Internet The routers within the internal network need to differentiate between individual subnets Internet routers, all subnets within internal networks collected into a single routing table entry Route Flapping –Subnet Address Mask

15 Discussion Points Router IOS Modes –User Executive –Privileged Executive –Global Configuration –Interface Configuration –Router Configuration System Testing and Trouble Shooting –Step by Step Testing –Link (Point-to-Point) Testing –Path (End-to-End) Testing –Use of show commands –Use of debug commands

16 Useful Router Commands show ip route show ip protocol show running-configure show version show ip interface brief show cdp neighbors show controllers serial show interface serial show interface ethernet debug ip rip debug ip packet detail no debug all