Case Study 1 The Concept of an IP Network

CSE3153 Semester 2 2006 Case Study 2 V1.0 The Concept of IP Subnetting Tutor 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: _____________ CSE5807 Semester 2 2006 Case Study 2 V1.0 The Concept of IP Subnetting Student 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: _____________ Packet Tracer V3.2 A simulation product for designing, and testing a network before implementation on the actual hardware devices. 3 CSE5807 - Case Study 2 Case Study 2 The Concept of IP Subnetting Network Address 35.0.0.0/18 Subnet 152 Brisbane Router

S 2/0 DCE Adelaide Router Serial Cable S 2/0 Fa 0/0 Fa 0/0 UTP Cable Subnet 85

Subnet 92 Bris_Hub Host 262 Adel_Hub Bris PC Adel PC Host 520

4 CSE5807 - Case Study 2 Brisbane Router - Configuration ! The FastEthernet interface configuration: interface fa 0/0 ip address 255.255.192.0 description Link to Brisbane Hub, Subnet 85 no shutdown ! The Serial interface configuration: interface serial 2/0 ip 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 5 CSE5807 - Case Study 2 Brisbane PC - Configuration Need to set the PCs IP address to address of Host 262 Need to set PCs subnet mask to 255.255.192.0 Need to set PCs gateway 6 CSE5807 - Case Study 2 Adelaide Router - Configuration ! The FastEthernet interface configuration: interface fa 0/0

ip address 255.255.192.0 description Link to Adelaide Hub, Subnet 92 no shutdown ! The Serial interface configuration: interface serial 2/0 ip address 255.255.192.0 description Link to Brisbane Router, Subnet 152 no shutdown ! Set hostname of the router hostname Adelaide 7 CSE5807 - Case Study 2 Adelaide PC - Configuration Need to set the PCs IP address to address of Host 262

Need to set PCs subnet mask to 255.255.192.0 Need to set PCs gateway 8 CSE5807 - Case Study 2 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? 9 CSE5807 - Case Study 2 Routing Protocols Brisbane Router

router rip version 2 network Adelaide Router router rip version 2 network 10 CSE5807 - Case Study 2 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?

11 CSE5807 - Case Study 2 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 12 CSE5807 - Case Study 2

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 13 CSE5807 - Case Study 2

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 14 CSE5807 - Case Study 2