Network Design Implementation for NEPTECH

The assignment content describes the configuration of a router (Router1) to connect with devices on a network, including a client PC, gateway router (Router0), and server. The router is configured to communicate with these devices using IP routing. The output of ping and traceroute commands are shown in Figures 3-7. The assignment also covers DHCP configuration, DNS and web server setup, and firewall configuration. The proposed network design aims to simplify network management and improve scalability. It is recommended that NEPTECH implement this design to meet its expectations and solve existing problems.

TCP/IP Networking
Testing on the knowledge on Networking and that is the technical part
and the use of diagrams how this can be applied in real application in
life.

patel Srinivas reddy
Table of Contents
Executive Summary................................................................................................................................2
Components of IT Infrastructure............................................................................................................3
Components for computer hardware.................................................................................................3
Setting Up the Network..........................................................................................................................4
Configuring The Routers.....................................................................................................................4
Configuring router0........................................................................................................................4
Configuring router1........................................................................................................................6
Pinging................................................................................................................................................7
Traceroute..........................................................................................................................................9
Configuring of Network services..........................................................................................................10
DHCP Configuration..........................................................................................................................10
DNS and WEB SERVER CONFIGURATION..........................................................................................12
References............................................................................................................................................16
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Executive Summary
Network in every organization is a very crucial and a very fundamental basic that requires thorough
understanding when being set up, this is because if a network design is not clear or as per the
requirements this may mess the working of the whole organisation. Many organizations are
upgrading to digital ways nowadays and avoiding paper work. Network has made communication in
these organizations to be easy as the centralized storage and connection especially in case where
LAN and WAN has been set, hence sharing of information over the network.
A good network is described by the way is being set that is the topology applied, the IT
infrastructures components used, the budget or cost of setting the network, the expandability or
extensibility in case need in future and the compatibility with the existing devices in the organization.
In this case scenario we will consider a LAN (Local Area Network) for an organization named NepTech
that is set between Its three storey buildings in Australia. The basic idea is to set the topology by
showing all the configuration from the setting the layout that is the topology to setting up the
simulated network design to physical network design. This will detail in show the configuration of the
computers, the servers, switches, routers and their interfaces clearly showing the network addresses
assigned to each and every component within the network. Also after installing the network then we
need to configure the network services in terms of the DHCP, WEB Server, DNS and the Firewall.
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Components of IT Infrastructure
Many different organizations require different various components of IT infrastructure while setting
up and configuring their network in the design that is best according to their requirements. The
following are some of the components of IT infrastructure to be applied in the setting up the network
as per the requirement given.
Components for computer hardware
This are the basic infrastructures in all foundation of a network design. They include:
Switch.
A switch is a gadget used for connecting other computer devices to a LAN(Local Area Network)
(Mitchell, 2017).
Router
A router is a device that connect the network directly to the internet. It provides acceleration
embedded encrypted device, digital signal processing slots, Firewalls, Intrusion preventing,
Processing call, application services and voice calls.
WAP(Wireless Access Point)
A device in networking that creates the wireless LAN(WLAN). It broadcasts the signals of WI-FI within
that area and hence allowing many other end user devices nearby to be connected over the network.
CABLES
Fiber Cable
This is the media for transmission that is used for connecting various devices used in the network. In
this case for NepTech we use fiber cable as the network backbone connector from the core layer to
distribution layer which will go to the access layer of NepTech network design.
Ethernet Cable Cat 6 and Cat 5
Cat 5 is for providing connection of the access layer gadgets to NepTech LAN while Cat 6 is
for providing connection of data access to network wireless access points devices due to its
higher speed.
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Server and Storage Components
Servers are component that manages the access to resources and services shared in the network.
This include the Domain Name Server (DNS), DHCP server, File Server, DB server, Mail server and the
DNS Server.
Setting Up the Network.
Figure 1
The figure above 1 shows the set up of the network having two routers, one client pc and three
servers and in different network. Router0 is connected to the switch and the client pc in the network
with IP address 192.168.1.1. This router is accessed remotely by router1 which is connected to a
switch and the servers connecting to the switch hence remotely accessing router0.
Configuring The Routers
Configuring router0
The command for configuring router0(IP packet forwarding)
Router>en
Router#config t
Enter configuration commands, one per line. End with CNTL/Z.
Router(config)#int fa0/0
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Router(config-if)#ip address 192.168.1.1 255.255.255.0
Router(config-if)#nondescription router0 1range
Router(config-if)#
Router(config-if)#eiexit
Router(config)#exit
Router#
%SYS-5-CONFIG_I: Configured from console by console
Router#configure terminal
Enter configuration commands, one per line. End with CNTL/Z.
Router(config)#interface FastEthernet0/0
Router(config-if)#no shutdown
Router(config-if)#
%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)#exit
Router#
%SYS-5-CONFIG_I: Configured from console by console
Router#config t
Enter configuration commands, one per line. End with CNTL/Z.
Router(config)#interface
% Incomplete command.
Router(config)#int se2/0
Router(config-if)#
Router(config-if)#ip address 192.168.2.1 255.255.255.0
Router(config-if)#
Router(config-if)#clock rate 64000
Router(config-if)#
Router(config-if)#no shutdown
%LINK-5-CHANGED: Interface Serial2/0, changed state to down
Router(config-if)#
%LINK-5-CHANGED: Interface Serial2/0, changed state to up
%LINEPROTO-5-UPDOWN: Line protocol on Interface Serial2/0, changed state to up
The figure 2 here below shows the output of the commands above for the router0.
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Figure 2 Configuration of router0
After all the commands has been set the route is supposed to be active and on in a manner that it
can now communicate with the device attached to it. It is ip routed with the router1 which is
accessing it remotely over another network and that can be clearly shown on the commands as
above.
Configuring router1
The command for configuring router1(IP packet forwarding)
Router>en
Router#config t
Enter configuration commands, one per line. End with CNTL/Z.
Router(config)#
Router(config)#interface FastEthernet0/0
Router(config-if)#int fa0/0
Router(config-if)#ip address 192.168.2.1 255.255.255.0
Router(config-if)#no shutdown
Router(config-if)#
%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)#exit
Router#
%SYS-5-CONFIG_I: Configured from console by console
Router#config t
Enter configuration commands, one per line. End with CNTL/Z.
Router(config)#int se2/0
Router(config-if)#
Router(config-if)#ip address 192.168.1.1 255.255.255.0
Router(config-if)#
Router(config-if)#no shutdown
Router(config-if)#
%LINK-5-CHANGED: Interface Serial2/0, changed state to up
%LINEPROTO-5-UPDOWN: Line protocol on Interface Serial2/0, changed state to up
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After all the commands has been set the router2 is supposed to be active and signal green now and
not red and in a manner that it can now communicate with the devices attached to it and also with
the gateway router. It is ip routed with the router0 which is on another network with clients or end
user devices and that can be clearly shown as on the commands as above. The figure below shows
the output after the command have been implemented.
Figure 3 Configuration of router1
Pinging
Pinging for Client Pc on the gateway network
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Figure 4 ping for client pc on the gateway network
Ping for gateway router0 from client pc
Figure 5 ping for router0(gateway router) from client pc on the gateway network.
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Ping for Remote router(router1) from client pc
Figure 6 ping for router1(remote router) from client pc
Ping for Server from client pc
Figure 7 ping for server2 from client pc.
Traceroute
The following diagram below shows the results of the implementation of the Trace route command.
The command is as follows:
pc>tracert 192.168.2.3
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The output is as follows:
Figure 8 output of traceroute of server1 from client pc.
Configuring of Network services
Figure 9
DHCP Configuration
When configuring the DHCP SERVER one has to double click to configure in the window that pop up.
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The command for configuring this is as follows;
Router>
Router>en
Router#config
Configuring from terminal, memory, or network [terminal]? t
Enter configuration commands, one per line. End with CNTL/Z.
Router(config)#ip dhcp pool IPD
Router(dhcp-config)#network 192.168.2.0 255.255.255.0
Router(dhcp-config)#default router 192.168.2.1
Router(dhcp-config)#default-router 192.168.2.1
Router(dhcp-config)#dns-server 192.168.2.100
Router(dhcp-config)#exit
Router(config)#ip dhcp excluded-class 192.168.2.1 192.168.2.10
Router(config)#ip dhcp excluded-address 192.168.2.1 192.168.2.10
Router(config)#ip dhcp excluded-address 192.168.2.12 192.168.2.14
Router(config)#
Router#
%SYS-5-CONFIG_I: Configured from console by console
Figure 10
At the desktop the IP address is indicated as we indicated in the command in the router. The
DHCP server is automatically assigned an IP Address of 192.163.2.18 and while the DNS
server is automatically assigned an IP address of 192.168.40. When done with this open the
service tab on the left side of the window and select DHCP service. Then we have to fill all
the details required in the server pool, Default Gateway, DNS Server, Starting IP Address,
Subnet Mask and Maximum number of users on the pop up window as shown in the figure
below.
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Figure 11
After filling all the selected fields SELECT the ON button and the DHCP server will be successfully
configured, hence providing IP Addresses to all the other devices within the network. The figure
below shows the client (Pc0) being assigned ip addresses by the DHCP server as shown by the result
in the figure 12 below.
Figure 12
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DNS and WEB SERVER CONFIGURATION
On clicking on the DNS Server it opens many tabs, select the desktop tab, then IP configuration and
then chose select DHCP button and the DNS server is automatically assigned an IP address by the
DHCP Server. The illustration as shown in figure 13 below.
Figure 13
As shown above from the DNS server the DHCP Server assigns it an IP Address of 192.168.2.16,
Subnet mask 255.255.255.0, default gateway 192.168.2.1 and DNS SERVER being 192.168.2.100.
After confirming the assigning of IP address of the DNS server we do the same for the Web server
and the IP address assigned to the webserver is 192.168.2.15, Subnet mask is 255.255.255.0, default
gateway 192.168.2.1 and the DNS Server is 192.168.2.100.
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Figure 14
From the IP address 192.168.2.15 we select Services tab and we use to create a web page
www.patelsrinivasreddy.csu.edu.au as described and explained in the figure below.
Figure 15
After setting the web page we click on the DNS server and on the service panel we select DNS.
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Figure 16
As shown above figure 16 provides name of the web server, its IP Address and then click the add
button. This adds the lists of web servers that will be available in the network. After configuration the
select ON button for completion of DNS server set up.
Any client who is connected over the network will be designed IP Address by the DHCP Server.This
can be show on PC0 as it is assigned its ip address by the DHCP Server
Figure 17
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The Server DHCP which is connected to NepTech Network 196.168.1.2 IP Address as shown in figure
For accessing the webserver on PC0 we click the network panel in the client PC0. By opening the
desktop tab and selecting the web browser tab. After opening we type the URL and click go to access
the webserver as shown in figure 18 below
Figure 18
This allows the Client PC0 to access the NepTech webserver to all machines as they are in the same
network.
Firewall
The below command explains how configuration of the firewall with the rule of inspection rule on
interface “fa0/0” which is the inner interface. These Policies are specified via ACL 176 or 107; i.e., ACL
176 can be used to specify that rlogin and rsh are not allowed for the inner users, and ACL 107 can be
used to specify
that an outer host requires connectivity to a particular host in the internal domain.
Router(config)# ip inspect name patel tcp
Router(config)# interface fa0/0
Router(config-if)# ip inspect patel in
Router(config-if)# exit
Configure the ACLs.
Router(config)# access-list 107 deny ip any any
Router(config)# access-list 176 permit 10.1.1.0 255.255.255.0 any
Router(config)# access-list 176 deny ip any any
Router(config)# interface fa0/0
Router(config-if) ip access-group 176 in
Router(config)#int fa1/0
Router(config-if) ip access-group 107 in
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Recommendations and Conclusions
From all solutions, commands and outputs shown from all the diagrams above it makes it clear that
the network design proposed by NEPTECH to be very easy in managing, hence more scalable that the
existing network. My recommendation is that NEPTECH will put in to implementation of the
proposed network design as it will meet its expectations and solve all the exist problems.
References
Mbaocha, C. C. (2012). DESIGN OF CAMPUS LAN WITH FUTO AS A CASE STUDY. Federal University of
Technology. Academic Research International.
Mitchell, B. (2017). Internet and Network. What is Computer Networking?, 1-3.
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