Network Infrastructure and IP Addressing

This document provides a report with details of the network design and configuration for company ABC. It includes information on the network infrastructure, IP addressing, and routing protocols.

Running head: NETWORK INFRASTRUCTURE AND IP ADDRESSING
Network Infrastructure and IP Addressing
Muhammad Abdullah (201703234)
Name of the University
Author Note

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NETWORK INFRASTRUCTURE AND IP ADDRESSING
Task A: Report with details of Network Design and Configuration
Requirements
The network of the company ABC, is to consist of 3 routers, each of which serving a
particular network with a full subnet dedicated to them.
The network connects the workstations present in the networks segments through their
specific switches.
The network should be able to facilitate network communications between the different
network segments through any kind of routing protocol.
Logical Design
Figure 1: Network Design Diagram of company ABC
Justification
The network design as can be found from the logical design presented above shows the
network of the company ABC. Effective routing protocols and IP address configuration for
the different network segments through the routers and switches ensure that the links to these

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networks are up and running. The configuration also allows for transmission of data packets
from one host device of a network segment to the host device of another network segment as
also within the same network segment.
Task 1
a. NET-A:
Network/Subnet ____NET-A________________________________
Network Address ___192.168.134.0___________________________
Broadcast Address __192.168.134.255_________________________
Valid host range ____192.168.134.1 – 192.168.134.254___________
b. NET-B:
Network/Subnet _____NET-B_______________________________
Network Address ___10.10.134.0____________________________
Broadcast Address __10.10.134.255__________________________
Valid host range ____10.10.134.1 – 10.10.134.254_______________
c. NET-C:
Network/Subnet _____NET-C_______________________________
Network Address ___172.16.134.0____________________________
Broadcast Address __172.16.134.255__________________________
Valid host range ____172.16.134.1 – 172.16.134.254_____________
d. RA – RB subnet __192.168.0.254 – 192.168.0.253_____________
RB – RC subnet __192.168.1.249 – 192.168.1.250_____________

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Net A subnet mask __255.255.255.0________________________
Fill the following table with the corresponding IP address.
Device Interface IP Address/Subnet
Mask
D/Gatewaay
RA Fa0/0 192.168.134.1 To NET A
Se2/0 192.168.0.254 To RB
RB Fa0/0 10.10.134.1 To NET B
Se2/0 192.168.0.253 To RA
Se3/0 192.168.1.249 To RC
RC Fa0/0 172.16.134.1 To NET C
Se2/0 192.168.1.250 To RB
Configure router RA interfaces:
RA(config)#:int F0/0_no shutdown__________________________________
RA(config-if)#:_ip address 192.168.134.1 255.255.255.0________________
RA(config-if)#:_exit_____________________________________________
RA(config)#:int Se2/0_no shutdown________________________________
RA(config-if)#:_ip address 192.168.0.254 255.255.255.252______________
RA(config-if)#:_exit_____________________________________________
Configure Routing Protocol
Provide commands to enable any routing commands (student’s choice) in RA?
RA(config)#:_router rip__________________________________________

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RA(config-router)#:_network 192.168.134.0__________________________
RA(config-router)#:_network 192.168.0.0____________________________
RA(config-router)#:_network 10.0.0.0_______________________________
RA(config-router)#:_network 192.168.1.0____________________________
RA(config-router)#:_network 172.16.0.0_____________________________
Provide commands to enable routing protocol in RB (same protocol configured in RA)?
RB(config)#:_router rip__________________________________________
RB(config-router)#:_network 192.168.134.0__________________________
RB(config-router)#:_network 192.168.0.0____________________________
RB(config-router)#:_network 10.0.0.0_______________________________
RB(config-router)#:_network 192.168.1.0____________________________
RB(config-router)#:_network 172.16.0.0_____________________________
Provide commands to enable routing protocol in RC (same protocol configured
in RA)?
RC(config)#:_router rip__________________________________________
RC(config-router)#:_network 192.168.134.0__________________________
RC(config-router)#:_network 192.168.0.0____________________________
RC(config-router)#:_network 10.0.0.0_______________________________
RC(config-router)#:_network 192.168.1.0____________________________
RC(config-router)#:_network 172.16.0.0_____________________________

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Detailed configuration commands for all routers and switches
Configuration of Router RA
Router0>enable
Router0#configure terminal
Enter configuration commands, one per line. End with CNTL/Z.
Router0(config)#hostname RA
RA(config)#interface FastEthernet0/0
RA(config-if)#no shutdown

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RA(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
RA(config-if)#ip address 192.168.134.1 255.255.255.0
RA(config-if)#
RA(config-if)#exit
RA(config)#interface Serial2/0
RA(config-if)#no shutdown
%LINK-5-CHANGED: Interface Serial2/0, changed state to up
%LINEPROTO-5-UPDOWN: Line protocol on Interface Serial2/0, changed state to up
RA(config-if)#ip address 192.168.0.254 255.255.255.252
RA(config-if)#
RA(config-if)#exit

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RA(config-if)#
RA(config)#router rip
RA(config-router)#network 192.168.134.0
RA(config-router)#network 192.168.0.0
RA(config-router)#network 10.0.0.0
RA(config-router)#network 192.168.1.0
RA(config-router)#network 172.16.0.0
RA(config-router)#
RA(config-router)#exit
RA(config)#
RA(config)#^Z
RA#
%SYS-5-CONFIG_I: Configured from console by console
RA#wr
Building configuration...
[OK]
RA#
RA#

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RA con0 is now available
Press RETURN to get started.
Configuration of Router RB
Router1>enable
Router1#configure terminal
Enter configuration commands, one per line. End with CNTL/Z.

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Router1 (config)#hostname RB
RB(config)#interface FastEthernet0/0
RB(config-if)#no shutdown
RB(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
RB(config-if)#ip address 10.10.134.1 255.255.255.0
RB(config-if)#
RB(config-if)#exit
RB(config)#interface Serial2/0
RB(config-if)#no shutdown
%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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RB(config-if)#ip address 192.168.0.253 255.255.255.252
RB(config-if)#
RB(config-if)#exit
RB(config)#interface Serial3/0
RB(config-if)#no shutdown
%LINK-5-CHANGED: Interface Serial3/0, changed state to up
%LINEPROTO-5-UPDOWN: Line protocol on Interface Serial2/0, changed state to up
RB(config-if)#ip address 192.168.1.249 255.255.255.252
RB(config-if)#
RB(config-if)#exit
RB(config-if)#
RB(config)#router rip
RB(config-router)#network 192.168.134.0
RB(config-router)#network 192.168.0.0
RB(config-router)#network 10.0.0.0
RB(config-router)#network 192.168.1.0
RB(config-router)#network 172.16.0.0

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RB(config-router)#
RB(config-router)#exit
RB(config)#
RB(config)#^Z
RB#
%SYS-5-CONFIG_I: Configured from console by console
RB#wr
Building configuration...
[OK]
RB#
RB#
RB con0 is now available
Press RETURN to get started.

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Configuration of Router RC
Router2>enable
Router2#configure terminal
Enter configuration commands, one per line. End with CNTL/Z.
Router2(config)#hostname RC
RC(config)#interface FastEthernet0/0
RC(config-if)#no shutdown

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RC(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
RC(config-if)#ip address 172.16.134.1 255.255.255.0
RC(config-if)#
RC(config-if)#exit
RC(config)#interface Serial2/0
RC(config-if)#no shutdown
%LINK-5-CHANGED: Interface Serial2/0, changed state to up
%LINEPROTO-5-UPDOWN: Line protocol on Interface Serial2/0, changed state to up
RC(config-if)#ip address 192.168.1.250 255.255.255.252
RC(config-if)#
RC(config-if)#exit

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RC(config-if)#
RC(config)#router rip
RC(config-router)#network 192.168.134.0
RC(config-router)#network 192.168.0.0
RC(config-router)#network 10.0.0.0
RC(config-router)#network 192.168.1.0
RC(config-router)#network 172.16.0.0
RC(config-router)#
RC(config-router)#exit
RC(config)#
RC(config)#^Z
RC#
%SYS-5-CONFIG_I: Configured from console by console
RC#wr
Building configuration...
[OK]
RC#
RC#

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RC con0 is now available
Press RETURN to get started.
Configuration of Switch SW-A
Switch>en
Switch#conf t
Enter configuration commands, one per line. End with CNTL/Z.
Switch(config)#hostname SW-A
SW-A(config)#int fa0/1
SW-A(config-if)#switchport access VLAN 1
SW-A(config-if)#exit
SW-A(config)#int fa0/2
SW-A(config-if)#switchport access VLAN 1
SW-A(config-if)#exit
SW-A(config)#int fa0/3
SW-A(config-if)#switchport access VLAN 1
SW-A(config-if)#exit
SW-A(config)#^Z
SW-A#

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%SYS-5-CONFIG_I: Configured from console by console
SW-A#wr
Building configuration...
[OK]
SW-A#
SW-A#
Configuration of Switch SW-B
Switch>en
Switch#conf t
Enter configuration commands, one per line. End with CNTL/Z.
Switch(config)#hostname SW-B
SW-B(config)#int fa0/1
SW-B(config-if)#switchport access VLAN 1
SW-B(config-if)#exit
SW-B(config)#int fa0/2
SW-B(config-if)#switchport access VLAN 1
SW-B(config-if)#exit
SW-B(config)#int fa0/3
SW-B(config-if)#switchport access VLAN 1

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SW-B(config-if)#exit
SW-B(config)#^Z
SW-B#
%SYS-5-CONFIG_I: Configured from console by console
SW-B#wr
Building configuration...
[OK]
SW-B#
SW-B#
Configuration of Switch SW-C
Switch>en
Switch#conf t
Enter configuration commands, one per line. End with CNTL/Z.
Switch(config)#hostname SW-C
SW-C(config)#int fa0/1
SW-C(config-if)#switchport access VLAN 1
SW-C(config-if)#exit
SW-C(config)#int fa0/2
SW-C(config-if)#switchport access VLAN 1

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SW-C(config-if)#exit
SW-C(config)#int fa0/3
SW-C(config-if)#switchport access VLAN 1
SW-C(config-if)#exit
SW-C(config)#^Z
SW-C#
%SYS-5-CONFIG_I: Configured from console by console
SW-C#wr
Building configuration...
[OK]
SW-C#
SW-C#

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Task B: Assume the IT department of ABC wants to adapt to virtualization
and cloud computing or hosting some of the organization application
servers. Discuss the following:
1. Propose two organizations that provides Cloud services for hosting the email
and web servers for the organization. Justify your answer by explaining the level
of services each company provides that suit the organization requirements.
Cloud based solutions
Two of the leading organizations which are responsible for providing cloud
computing as well as cloud storage services that are appropriate for the company ABC for
hosting of web or even email servers are the companies of Amazon and Microsoft
Corporation through their well acclaimed and time tested cloud solutions, namely – AWS or
Amazon Web Services and MS Azure from the respective companies.
Azure and AWS are both comprehensive cloud based solutions that work more or less
the same for most of the use cases. The network requirements and associated business
decisions of the company ABC are the primary criteria upon which a choice or preference on
one of the solutions can be determined. If one evaluates along the lines of how flexible the
computational as well as storage specific services are, the various network and budgeting
details along with the key abilities offered by these solutions remain the same. The public
cloud specific elements among Azure and AWS are known to be the following – self-service,
instant provisioning security, autoscaling, compliance, pay-as-u-go pricing and identity
access management.
The software development kit of Amazon Web Services when it comes to dealing
with PHP version 3 helps the developers with use of the AWS solution specifically for the set
of PHP codes in order to build solid as well as effective set of applications through the

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utilization of various ingenious services such as Amazon DynamoDB, Amazon S3, Glacier as
also several others. The process when using the other solution – Azure from Microsoft, does
not change much. The key functionality which the cloud services primarily offer is
substantially large storage capabilities. Despite the storage services of Amazon AWS being
among the longest existing ones, the storage solutions offered by Microsoft through their
solution MS Azure are very large and sufficiently reliable also. This is the reason why, both
solutions AWS and MS Azure becomes able to provide the various associated features which
can be access to REST API or even encrypting the server-side data. The specific storage
mechanism that is used by MS Azure is called the Blob storage developed by Microsoft
whereas the storage solution used by AWS is the Simple Storage Service or S3. Similarly, the
SQL database services of MS Azure is based upon the MS SQL Server. Dynamo DB and
Amazon S3 gets used for storage virtualization purposes. Thus, both web services and mail
scheduling services and associated requirements of the company ABC can easily get met
through use of any of the solutions recommended above.
Demonstrate how the Cloud computing can support the dynamic scaling of the
selected organization applications.
Dynamic Scaling (Autoscaling) of AWS
Scaling strategies tell the AWS Autoscaling the ways of optimizing the resource
utilization in the scaling plan that has been created. This way, optimizations can be done for
saving costs, making resources available or even in balancing both. Instead, users are also
presented the option of creating their own customized strategies based on metrics and
thresholds defined. Thus, one becomes able to separate strategies from one resource to
another.

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Figure 4: Auto scaling for web hosting mail scheduling of ABC
(Source: docs.aws.amazon)
The diagram above clearly elaborates the way hosting of websites can be done by the
company ABC as well as scheduling of bulk emails or hosting the mailing domain. These
tasks get initiated according to the schedules specified in the several branches through the use
of cloud services that include the different network segments of the company ABC. This
requires the configuration of the scaling policy along with variations of systems which are
involved in automatic adjustments as it is mentioned in their policies.
When the dynamic as well as predictive scaling features get enabled, the strategy of
scaling is shared among them. These available scaling strategies are listed and discussed
below:
Availability – Auto Scaling works by scaling out the various resources as also by scaling
them back in on an automatic basis to maintain effective and efficient resource utilization at
about 40 percent. These options are useful as applications are found to have numerous urgent
as well as unpredictable requirements for the resource scaling.

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Availability and Costs – The functioning of Auto Scaling in automatic scaling of resources
both in and out to maintain resource utilization near about 50 percent. Becomes very helpful
when it comes to maintaining high availability and reduction of costs.
Costs – The resource scaling of AWS Auto Scaling both in and out on automatic basis helps
maintain resource utilizations near about 70 percent. Options like these comes very handy
when the costs must definitely be reduced especially at the times the application is able to
handle reduced buffer capacities despite the fact that unexpected changes can occur.
Azure Dynamic Scaling
Optimal conditions for any of the components of the service while using dynamic scaling can
be given as follows:
1. Horizontal scaling of the components (such as duplications for forming multiple
instances)
2. The load based variations of components over any given time period
When these criteria mentioned above are met, benefits of dynamic scaling can be noticed
although these benefits acquired depends mainly on how dynamic the nature of the load can
be in due time.
To enable dynamic loading in MS Azure, one has to be navigating into Scale tab in
the portal and must be enabling that specific service. Dynamic scaling utilized through cloud
services are configured specifically for every single role. While using Virtual Machines, the
functionality of dynamic scaling can be configured specifically for all the different set of
availabilities.
When use of dynamic scaling is made through the selection of CPU, one new slider
becomes available to the user. The slider’s range describes the typical usages of the CPU for

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a specific given role. Around 60 to 80 percentage of the CPU target can be recommended as
default. This suggests that machines may as well run much hotter that is greater than 80%
even before scaling upwards and hence tighter metrics need to be used by reducing both the
maximum and the minimum.
The seamless integration of AWS as also its less proprietary nature makes it a slightly
preferable solution over MS Azure though sacrificing compatibility with Microsoft tools.
Therefore, ABC being a mid-sized business, it is assumed that the Amazon Web Services or
AWS is the cloud service solution chosen by the company ABC over MS Azure.

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