Create a network topology using mininet

Assignment Help Computer Networking

Reference no: EM132373357

Assessment - Software Defined Controllers

Purpose of the assessment (with ULO Mapping)

The main purpose of this assignment is to enable students to understand, demonstrate, and evaluate POX controllers, which is in line with learning outcomes of this unit as follows:
1. Plan, configure and troubleshoot controllers and SDN networks
2. Apply and evaluate security challenges in the SDN paradigm
3. Evaluate the emerging SDN applications

Routers in traditional networks respond to Address Resolution Protocol (ARP) requests, for this, they also maintain cache. However, in Software Defined Networks (SDN) this is not the case, and router is not an intelligent device, rather a central controller handles ARP requests. So SDN controller such as POX controller sends back ARP reply upon receiving ARP requests.

For the first part of this assignment, create a network topology using Mininet that can demonstrate following parts of the assignment i.e. second and third part.

For the second part of this assignment, perform following tasks:

1. Identify the ARP structure and its fields in a POX controller.
2. Configure the POX controller that replies ARP requests.

Hint [check the sample code for load balancer to get an example showing how to handle ARP packets.]

Similarly, Internet Control Management Protocol (ICMP) is used to handle error message. One of the possible error can be to receive a packet whose destination address i.e. the host does not exist in the network. The router sends [ICMP: Host Unreachable] message in traditional network, here the controller needs to send the same message.

For the third part of this assignment, read the ICMP protocol to figure out the error management options and select at least two errors. For an error the controller may receive the ICMP packets such as host unreachable error, write a routine to entertain such messages.

In the created scenario one should be able to:

• Ping the routers
• Ping all the other hosts.
• Tracing a host
• ICMP message if a host does not exist

Finally explain at least two attacks and their impact on Software defined network.

Assignment 2 report should contain following sections:

• Containing (Draw) a network topology along with sub-nets and IP addresses assigned to networking devices and hosts.
• Write all of the activities to achieve ARP requests and ICMP error message implementations.
• Demonstration to show connectivity between all the hosts by ping command (Screen shots or video)
• Demonstration to show an error message when a host is not reachable or the destination IP address is in a sub-net that is not connected to the network (Screen shots or Video)
• Explanation of at least two attacks and their impact on SDN.

Reference no: EM132373357

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Reviews

len2373357

9/20/2019 2:21:34 AM

Marking Rubric for Assignment #2: Total Marks 50 Grade Mark HD > 80% DI 70-79% Excellent Very Good Topology /5 An appropriate topology is clearly and precisely drawn in the report and created in the VM An appropriate topology is clearly drawn in the report and created in the VM ARP requests implementatio n /10 How ARP is implemented in the POX or some other controller is explained exceptionally well How ARP is implemented in the POX or some other controller is explained well ICMP error message implementatio n /10 How ICMP is implemented in the POX or some other controller is explained exceptionally well How ICMP is implemented in the POX or some other controller is explained well Router connectivity and demonstration /15 Demonstrates of the connectivity and error messages clearly and precisely Demonstrates of the connectivity and error messages clearly

len2373357

9/20/2019 2:21:17 AM

Marking criteria: Example of marking criteria is shown in following table. Marks are allocated as follows: Note: The marking criteria varies for each assignment Section to be included in the report Description of the section Marks Topology is drawn and created An appropriate topology is drawn in the report and created in the VM. 5 ARP requests implementation in the controller Explaining how ARP is implemented in the POX or some other controller of your choice. 10 ICMP error message implementation in the controller Explaining how ICMP is implemented in the POX or some other controller of your choice. 10 Router connectivity verification Demonstration of the connectivity of the network by ping command 5 Demonstration Demonstration of error messages by tracing route to hosts 10 Attacks on SDN Two attacks explanation 5 Attacks impacts on SDN Analysis of the two attacks 5 Total 50

len2373357

9/20/2019 2:20:48 AM

• If an extension of time to submit work is required, a Special Consideration Application must be submitted directly to the School's Administration Officer, in Melbourne on Level 6 or in Sydney on Level 7. You must submit this application three working days prior to the due date of the assignment. Further information is available

len2373357

9/20/2019 2:20:41 AM

Submission Guidelines • All work must be submitted on Moodle by the due date along with a title Page. • The assignment must be in MS Word format, 1.5 spacing, 11-pt Calibri (Body) font and 2.54 cm margins on all four sides of your page with appropriate section headings. • Reference sources must be cited in the text of the report, and listed appropriately at the end in a reference list using IEEE referencing style.

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