Latest Entries »

Net 1 Lab 8

I have been editing videos in Sony Vegas for over 5 years and because the lab was more of a tutorial for the project rather than a learning experience for an experienced video editor, I decided I wasn’t going to get much out of showing up to do the lab. This is just my personal reasoning, whether one agrees with the logic of it or not is completely fine because there is obviously counterpoints towards my decision. I don’t expect to get credit for the lab, but I believe there is question to be had towards the need for this lab due to its relation towards the class.

Net 1 Lab 7

Ian Reese
Lab 7: Subnetting

Objectives: Get a working network set up with subnets.

Notes and Observations:

We used 3 routers for this lab so we used 3 bits to be used for the subnet because we wanted room for additional routers. Since our IP was 172.16.0.0, we were using a class B network. So since we wanted 3 bits borrowed and were using a class B network, our mask was 255.255.224.0. We had 4 subnetworks which we gave the ip of 172.16.32.0, 172.16.64.0, 172.16.96.0, and 172.16.128.0. Once we worked those out we laid out what the ips were going to be for each device. We successfully mapped out a plan for our network, so then we began configuring our routers appropriately. We had some issues with one of the computers configuring the routers so we ended up only configuring one router total.

Questions: No questions were asked on this week’s lab.

Conclusions: Even though we didn’t completely set up the network, we learnt how to configure routers to the map that was created before hand.

Net 1 Lab 6

Ian Reese
Lab 6: Web & FTP Servers
Lab partner: Jon

Objectives: Using Apache and Filezilla, install a webserver, create a homepage, and set up a FTP page for your partner to view and use as a test.

Notes and Observations:

First we downloaded and started up Apache. Once it was set up, we typed in localhost to see our own page:

default

Apparently I forgot to take pictures of my webpage and Jon’s once we made our HTML files and transferred them over into the folder. But we did manage to connect to one another’s webpages successfully.

After we had created our homepages, we started up Filezilla and set up FTP accounts for one another to use on our page. We had a few hiccups, which were mostly sorted out with disabling the firewall, but we managed to completely work it out on our own. Unfortunately I didn’t take too many good pictures to show the steps, but here is the end result which is Jon sending a file called “New Document.txt” over to me through the FTP I set up:

transfer

Questions: There were no questions corresponding to this week’s lab.

Conclusions: We successfully created a web server, homepage, and FTP page.

Net 1 Lab 5

Ian Reese
Lab 5: Sniffing with Wireshark

Objectives: Track packets as they are sent using wireshark to learn about how they are transferred.

Notes and Observations:

Browsing a webpage on a server outside of campus:

1 browsingweb

File transfer on FTP server:

2 ftp

Testing connection with a ping:

5 download

Acquiring a network address with DHCP:

4 dhcp

Downloading a font file from dafont.com:

3 ping

Questions:

1. What is the purpose of sequence numbers?

– So they can be reassembled in the way they were transmitted.

2. What is the purpose of source and destination addresses?

– So the devices that are used to send the packets know who information is from and where it goes.

3. What is the purpose of DNS?

– So that users can type in a hostname and it can be translated into the meaningful IP address that the hardware uses to address information.

4. What is DHCP?

– Dynamic Host Configuration Protocol is a protocol used to configure devices connected to a network so they can communicate on an IP network.

5. What is the relationship between the OSI model of networking and what you saw in this lab activity?

6. What evidence of layered network design did you discover when examining captured data? How does the wireshark data demonstrate encapsulation?

7. What are the implications of having a tool like wireshark freely available? For network administration? For security?


Conclusions:

Net 1 Lab 4

Ian Reese
Lab 4: IP Networking
Partner: Jon

Objectives: Our objective was to create a simple class “C” Network and the configure a router so our class “C” could communicate with a class “B” that another group were doing. Unfortunately we didn’t have the equipment to configure the router so we had to watch our instructor just demonstrate how you would configure a router.

Notes and Observations: The part that we were able to do was fairly simple, but we did run into one bump. That being that you need to completely close out of Local Area Connection Status window in order for manual IP configurations to come into effect. The amount of things that went wrong for the second part was quite notable. The upgraded computers ended up not having the connector that was needed as well as needing to download software to finally get a communication going between the input on the computer and the router. I think after getting hands on experience with configuring a router I will get a better understanding and find it quite easy, but for now I just have a rough understanding.


Conclusions: We managed to ping one another in the command window successfully. Technology can be a real pain.

This week in Networking we went over our test and talked more about encapsulation. Going to be completely honest with this and say that I didn’t learn anything in this week that I can remember.

Net 1 Blog 4

This week in Networking we only had one day of class and took an Exam that day. I did decent, but felt I could’ve done better if I gave some of the questions a second thought. The one that I got wrong that bothers me the most is question 24.    where it asks what electricity is the flow of. For some reason my brain that day immediately went to neutrons. If I had gone over the three aspects of an atom, protons, neutrons, and electrons, in my head, I would have instantly realized my mistake in thinking it was neutrons. So what I learned from going over this test is that for the next ones I should not quickly fly through some of the questions, but think about the logistics for a few seconds.

Net 1 Lab 3

Ian Reese
Lab 3: OSI Model
3/3/2013

1. If we already had the TCP/IP model, why was the more complicated OSI model created?

2. What does the abbreviation OSI stand for? Who originated it? When?

Open Systems Interconnection. Charles Bachman provided the concept in the 1970’s and it was fully created and incorporated by the International Organization of Standardization.

3.

Layer # Layer Name Mnemonic Keywords & Description of Function
7 Application Animals
6 Presentation Poisonous
5 Session Super
4 Transport Touch
3 Network Not
2 Data-Link Do
1 Physical Please

4. Determine the highest layer of operation for the following network devices:

Layer 1: hub, repeater, patch panel

Layer 2: bridge, NIC, wireless access point, cable media, switch

Layer 3: router, switch

5. What is another name for a physical address? How many bits do they require? When two machines attempt to transmit simultaneously on the same media segment, both messages become garbled and unintelligible. What is this condition normally called?

MAC Address. 48 bits. It is called a data collision.

6. What is your IP address? What is your MAC address?

129.130.175.17 and 40-61-86-06-54-83 respectively

7. ARP ends in a “P” so what does that often signify?

That the P stands for Protocol.

What does ARP stand for & what does it do?

At the command prompt type arp –d *. This command clears your arp table. Type arp –a to verify there are currently no entries in the arp table. Now ping your neighbor’s computer by typing ping and their IP address. Did you get a reply? If not, be sure the windows firewall is turned off. Why is ping useful? Retype arp –a and record any changes. What is your neighbor’s physical address? Have your neighbor verify their physical address. Is it what is displayed in your arp table? Add two more entries to the arp table by pinging two other machines in the lab. What address is added to the arp table when you ping http://www.sal.ksu.edu? Why?

8. If a packet comes in from another network, only a layer 3 (IP) address is known. But direct machine to machine communication only occurs at layer 2. What method is used to translate a known layer 3 address into an unknown layer 2 address?

Encapsulation

9. Network Layer Layer 3 devices allow the interconnectivity of different local area networks through gateways. What are layer 3 gateway devices called? They use logical, or software encoded addresses. Many types of software addresses have been developed and used. What is the de-facto standard for logical addresses used today? How many bits do they require?

10.

Net 1 Blog 3

This week in Networking 1 class I learned about data sending with encapsulation and how the devices do their job of sending data efficiently.

Net 1 Lab 2

Ian Reese
Lab 2: Network Cables
2/17/2013

Objectives: Make a straight-through cable and crossover cable as well as wire a patch panel.

Equipment List: 3 foot length CAT5 UTP, RJ-45 connectors, Patch panel,  Wire Stripper, Punch down tool, Scissors, and Crimping tool

Notes and Observations: I thought this lab was really straight forward and going to be simple, but I was surprised to find the amount of skill and attention to detail that was required. It can be difficult to correctly cut the wires so they all are at the same length when they are put into the connector.

Conclusions: Even though I couldn’t fully get my cable to work I was capable of realizing my mistake and learn from it for the next attempt. If I had enough time to try it for a third time I would expect myself to be successful. As for the patch panel, I found it a cinch.