UIU Network System(Cn project)

Introduction and Problem Statement:

We have to design a realistic network based on the UIU network structure using only RIP and DHCP.

We have to design our own topology which should reflect the UIU network structure using protocols and methods we have learnt in our labs. We are avoiding NAT and virtual LAN. We have to show the connections between main UIU router and lab’s pcs, faculty pcs and also student’s laptops through wifi.

Network Diagram:

Figure: UIU Network System

To establish the network we have used three generic routers and two wireless routers.

To provide connections between main UIU router and labs pcs we have used a LAB Router. Three labs containing 30pcs are connected to main UIU router through the LAB Router. And there is a switch in every lab to connect 30 pcs. We have used two pcs in packet tracer to represent the connection.

To provide connections between main UIU router and the faculty pcs, servers, wireless routers we have used another router named Faculty router. Two wireless routers have been used to provide connections to the student’s laptops in 3rd and 4th floor which will connect routers through wifi.

As UIU uses class B IPs, we have used a class B network in our design. We left 6 bits for sub netting and 10 bits for hosts. IPs of three labs are given from 3 subnets (172.17.4.0; 172.17.8.0; 172.17.12.0). Similarly another 4 subnets are given to the connections of Faculty router, they are (172.17.24.0; 172.17.28.0; 172.17.32.0; 172.17.36.0) .Two IPs of subnet 172.17.20.0 are given to the connection between main UIU router and Faculty router. Another two IPs of subnet 172.17.16.0 are given to the connection between main UIU router and Lab router. All these steps were taken to make a single network.

Implementation and Configuration:

We implemented the whole network system in packet tracer. At first we selected the necessary devices like routers, switches, pcs and laptops to represent the network system, and then we connect those using straight-through and cross-over wires. Then we divided the hosts in groups using sub netting system. According to the subnet no. we select the IP addresses for the group of hosts. After that, we configure the routers and wifi and RIP them all.

The commands that are used in router configuration and RIP are given below:-

Lab Router:

Router>en

Router#config t

Enter configuration commands, one per line. End with CNTL/Z.

Router(config)#int fa0/0

Router(config-if)#ip address 172.17.4.1 255.255.252.0

Router(config-if)#no shutdown

%LINK-5-CHANGED: Interface FastEthernet0/0, changed state to up

%LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/0, changed state to up

Router(config-if)#exit













Router(config)#hostname Lab

Lab(config)#end

Lab#config t


Lab(config)#int fa7/0

Lab(config-if)#ip address 172.17.16.1 255.255.252.0

Lab(config-if)#no shutdown


Lab(config-if)#end

%SYS-5-CONFIG_I: Configured from console by console

Lab#copy run start

Destination filename [startup-config]?

Building configuration...

[OK]

UIU Router:

Router>en

Router#config t


Router(config)#hostname UIU

UIU(config)#int fa0/0

UIU(config-if)#ip address 172.17.16.2 255.255.252.0

UIU(config-if)#no shutdown



UIU(config-if)#end


UIU#config t


UIU(config)#int fa1/0

UIU(config-if)#ip address 172.17.20.2 255.255.252.0

UIU(config-if)#no shutdown

UIU(config-if)#


UIU(config-if)#end

Faculty Router:

Router>en

Router#config t


Router(config)#hostname Faculty

Faculty(config)#int fa0/0

Faculty(config-if)#ip address 172.17.20.1 255.255.252.0

Faculty(config-if)#no shutdown



Faculty(config-if)#end

Faculty#config t








Faculty#config t








Faculty#config t









Faculty#config t








RIP Lab Router:

Lab#config t


Lab(config)#router rip

Lab(config-router)#network 172.17.4.0




Lab(config-router)#end

RIP UIU Router:

UIU#config t


UIU(config)#router rip

UIU(config-router)#network 172.17.16.0

UIU(config-router)#network 172.17.20.0

UIU(config-router)#exit

RIP Faculty Router:

Faculty>enable

Faculty#config t


Faculty(config)#router rip

Faculty(config-router)#network 172.17.20.0





Faculty(config-router)#exit

Linksys Router Configuration for 3 rd floor:

Linksys Router Configuration for 4 th floor:

For both Linksys Router:

Testing:

IP Route for Lab Router:

IP Route for UIU Router:

IP Route for Faculty Router:

Pinging from Lab-2-PC1 to a Faculty pc and Server2:

Pinging from Laptop 1 in 3rd floor (through wireless router) to Lab-1-PC-1 and Lab-3-PC30

IP Configuration using DHCP that Laptop 1 has got through Wireless Router:

Laptop 3 in 4th floor getting two wireless router interfaces to which it can connect:

Conclusions and Future Improvement: The design that we have implemented is working properly. All laptops and pcs can send packets each other properly. Here we have implemented the topics we have learned from labs like sub netting,connecting devices like routers,end devices,servers using cross-over and straight through cable in packet tracer, how a wireless router can be used to provide DHCP ips to pcs using wifi,how to configure a router or pc for networking etc.

However the design can be improved by establishing ISP connection with main UIU router. Also using NAT the desighn can be made more realistic. VLAN devices can be used to improve this network.

Documents

UIU Network System(Cn project)