Reference no: EM133127019

COIT20261 Network Routing and Switching - Central Queensland University

Question 1 - Information about the block

a) How many addresses are available in the block allocated to the company, including all special addresses?
b) What is the network address of the block?
c) What is the direct broadcast address of the block?

Question 2- Allocating subnets from the block

Create five contiguous subnets from the given block beginning with the first address of the block, as follows:
i. The first subnet with 256 addresses
ii. A second subnet with 128 addresses
iii. A third subnet with 64 addresses
iv. Two subnets with 32 addresses each

For each subnet, show its prefix in CIDR format, its subnet address, and its direct broadcast address. Organize your data clearly in a table.

Question 3 - Network Tools (Windows)

Often the best way to gain an initial familiarity with network tools is to simply use them at a basic level, exploring and looking up information as you go. Some common tools you can explore include Wireshark, Ipconfig, Tracert, Netstat, Ping and Arp. All but Wireshark are included in Windows, Wireshark is free to download and install.

Explore these tools by researching online and trying them out yourself. Then answer the following questions, using your own words.

a) You have listed several devices (all turned on and working) in your home network along with their IP addresses. You decide that you want to add a column for their MAC addresses as well. From your desktop what command (tool) could you try first to get the MAC addresses? Explain the tool and its output.

b) You want to display the configuration of all the logical interfaces associated with each adapter in the computer. What command could you use? What other information could you discover from using that command? Explain your answer.

c) Assume that your computer is configured with IP address 192.168.0.230. You ping this address and receive four successful ping replies. Explain why you can rely on this to conclude that you have successful Internet access and explain when you cannot make such a conclusion from the same ping result.

Question 4 -- TCP

Study a diagram of a TCP segment header, paying special attention to the header fields, then list each field along with the value in decimal that would be in that field given the facts below. You must briefly explain your answer for each field.
• The segment is from a Daytime server to a Daytime client
• A port number of 53,500 was assigned on the receiver side
• There were no options
• The server will instruct the client not to send more than 6500 bytes at any one time
• The previous segment from the client was acknowledged by the server with an ack/data segment that had an acknowledgement number of 13,500 and a sequence number of 7,301
• The TCP checksum was calculated to equal binary zero
• The control flag fields indicate states of Not urgent; not first (sync request) or final (termination request) segment; no bypass of buffer queues required; and not a rest.

Attachment:- Network Routing and Switching.rar