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  1. CSE3153Semester 2 2006Case Study 2 V1.0The Concept of IP SubnettingTutor keeps this front sheet as record of completion Student Name: __________________________________________ Student Id: ____________________ Marks: 2.5 towards Unit Result You must demonstrate to your tutor that you have completed the case study Tutor Name: ____________________________________________ Tutor Signature: _____________________ Date: _____________

  2. CSE5807Semester 2 2006Case Study 2 V1.0The Concept of IP SubnettingStudent keeps this front sheet as record of completion Due Date: By end of week 6 Lab Session Student Name: __________________________________________ Student Id: ____________________ Marks: 2.5 towards Unit Result You must demonstrate to your tutor that you have completed the case study Tutor Name: ____________________________________________ Tutor Signature: _____________________ Date: _____________

  3. Packet Tracer V3.2 • A simulation product for designing, and testing a network before implementation on the actual hardware devices. CSE5807 - Case Study 2

  4. Case Study 2 – The Concept of IP Subnetting Network Address 35.0.0.0/18 Adelaide Router Brisbane Router Subnet 152 S 2/0 S 2/0 DCE Serial Cable Fa 0/0 Fa 0/0 UTP Cable Subnet 85 Subnet 92 Bris_Hub Adel_Hub Bris PC Host 262 Adel PC Host 520 CSE5807 - Case Study 2

  5. Brisbane Router - Configuration ! The FastEthernet interface configuration: interface fa 0/0 ip address <replace with address> 255.255.192.0 description Link to Brisbane Hub, Subnet 85 no shutdown ! The Serial interface configuration: interface serial 2/0 ip address <replace with address> 255.255.192.0 ! This is DCE end of the link clock rate 64000 description Link to Adelaide Router, Subnet 152 no shutdown ! Set hostname of the router hostname Brisbane CSE5807 - Case Study 2

  6. Brisbane PC - Configuration • Need to set the PC’s IP address to address of Host 262 • Need to set PC’s subnet mask to 255.255.192.0 • Need to set PC’s gateway CSE5807 - Case Study 2

  7. Adelaide Router - Configuration ! The FastEthernet interface configuration: interface fa 0/0 ip address <replace with address> 255.255.192.0 description Link to Adelaide Hub, Subnet 92 no shutdown ! The Serial interface configuration: interface serial 2/0 ip address <replace with address> 255.255.192.0 description Link to Brisbane Router, Subnet 152 no shutdown ! Set hostname of the router hostname Adelaide CSE5807 - Case Study 2

  8. Adelaide PC - Configuration • Need to set the PC’s IP address to address of Host 262 • Need to set PC’s subnet mask to 255.255.192.0 • Need to set PC’s gateway CSE5807 - Case Study 2

  9. Link (Point-to-Point) Testing • Use the ping command to test each link is working • Note you cannot ping from Brisbane PC to Adelaide PC, Why is this the case? CSE5807 - Case Study 2

  10. Routing Protocols Brisbane Router router rip version 2 network <replace with network address> Adelaide Router router rip version 2 network <replace with network address> CSE5807 - Case Study 2

  11. Path (End-to-End) Testing • Use the ping, and traceroute command to test a path exists between the Brisbane PC and the Adelaide PC • If a path exists, Why is this the case? CSE5807 - Case Study 2

  12. 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 CSE5807 - Case Study 2

  13. 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 CSE5807 - Case Study 2

  14. 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 CSE5807 - Case Study 2