EEGR410: Introduction to Networks /Fall 2017 Project 3__ 1. Project Description The purpose of this project is to configure the network schematic as shown below in Figure 1 using GNS3. The network consists of three buildings (Engineering, CBEIS and Montebello) of Morgan State University. Each of the buildings has their own router, switch and hosts. The configuration of the network is summarized in the table below. Figure 1: Network Diagram using Microsoft Visio® BUILDING PC Interface IP ENGINEERING 10.1.1.1 Fa0/0: 10.1.1.251 255.255.255.0 S0/0: 10.1.128.251 gateway 10.1.1.251 S0/1: 10.1.130.251 10.1.3.1 Fa0/0: 10.1.3.253 255.255.255.0 S0/0: 10.1.130.253 gateway 10.1.3.253 S0/1: 10.1.129.253 10.1.2.1 Fa0/0: 10.1.2.252 255.255.255.0 S0/0: 10.1.128.252 gateway 10.1.2.252 S0/1: 10.1.129.252 CBEIS MONTEBELLO Table 1: IP Address Assignment 2. Configure the IP addresses of the hosts (make sure you are using VPCs as hosts in your GNS3). You can configure the IP address of a host using the command  VPCS # ip [address] [netmask] [gateway] 3. Configure the routers (Engineering, CEBIS and Montebello). Recommended routers c3745. Example: Configuration of the IP address of the Fast Ethernet interface of Router R.  R# enable  R# conf t  R(config)# int f0/0  R(config-if)#ip add [address] [netmask]  R(config-if)#no sh  R(config-if)#exit  R(config)#end  R# Configuring a routing protocol on a router. For example for routing protocol eigrp  R# conf t  R(config)#router eigrp 100  R(config)#network [network address] ….repeat this command for the total number of networks the router is adjacent (connected with a serial interface)  R(config)#no auto-summary  R(config)#end  R#  R#copy running-config startup-config …copy running configuration to startup configuration. This will help you save the running-config to startup-config . N.B.: If you don’t have serial interfaces for connecting the routers to one another, you can always add additional WIC interfaces by changing the configuration. 4. Check Connectivity by running the ping command Ping PC1 from PC2  Ping 10.1.1.1 You should be getting as an output if you are successful in configuring your network of the form Example: y bytes from 10.1.1.1 icmp_seq=2 ttl=62 time=29.590 ms Explain the result of this command output 5. Check the output of the routers with commands  Show ip route  Show arp Explain the output of both command outputs 6. Now ping PC1 from PC2, PC2 from PC3 and PC1 from PC3 and check the result of the outputs.  Show ip route  Show arp Explain the output of both command outputs difference from the result of step 5. 7. Determine the MAC addresses of the hosts. 8. Since the GNS3 Workbench has a Wireshark integrated, right click and capture on the serial link between any of two routers. Save and analyze/explain the meaning of packets exchanged? 9. Add an additional VPC host to the Montebello Switch (you can choose any of the switches) and name the host with your first name as in Figure 2 (e.g. here I used in my design my first name). To complete this task and verify this host is added to the network successfully: - Select a proper IP address, default gateway and subnet mask that this host can be assigned. -ping to the other hosts in the same network (Montebello building) verify its success. -ping one of the hosts in a different sub network e.g. Engineering building and verify its success. Figure 3: Expected Final Network Design 10. Consider an application layer packet sent from PC1 to PC2. Describe the journey of the packet in details as it traverses the routers and switches and to reach its destination. You should be able to apply the concepts of encapsulation/ decapsulation as the packet traverses the TCP/IP layer, packet processing and forwarding at routers and switches. Deliverables: -Your network topology diagram (gns3 file) in *.zip format. Don’t forget to save your running configuration to start up configuration (if you don’t do so, you will lose all the configurations during the next startup). You can also export and save them in your working directory. -a report showing the screen shots of each of the steps followed during configuration accompanied by explanation. -an explanation of the questions together with their corresponding screen shots and the screen shot of the final Network diagram. Note: your project report should be a single *.pdf file of the report and grading will take into account project report theoretical explanation, format, clarity, originality, grammar and a detail explanation of each of the procedures followed together with their screen shots if there are any !
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