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NYC College of Technology

CS 607: LAN Connectivity (Fall 2008)

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	Assignment Requirements
	Required Texts
	Assignments : Jump to: September, October, November, December
	Recommended Web Sites and Books
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Announcements

Required for all Assignments

Required Text

Reference Texts

Assignments

In Class

• The Class Web page is located at CVibes.net. (No www. prefix!)
  • All assignments, reading and written, will be posted at CVibes.net
  • Assignments will never be posted in Blackboard
• Blackboard
  • Exams are administered via Blackboard
  • Make sure that you know your CUNY Portal user name and password. If you don't already have a CUNY Portal ID, then Register Now
  • Log into Blackboard to verify that you have access as soon as possible
• Protocol Review:
  • OSI Reference Model
  • DNS (Domain Name System) (or Service or Server)
  • DHCP (Dynamic Host Configuration Protocol)
  • NAT (Network Address Translation)
• Review: Troubleshooting Client Network Connectivity
  • Automatic Private IP Addressing (APIPA)
    • IPv4 Link-Local address assignment (IPV4LL)
    • The Internet Assigned Numbers Authority (IANA) has reserved 169.254.0.0-169.254.255.255 (169.254.0.0/16) for Automatic Private IP Addressing. As a result, APIPA provides an address that is guaranteed not to conflict with routable addresses.
    • How to use automatic TCP/IP addressing without a DHCP server
  • IPConfig /all
  • Ping

Read

• Classless Inter-Domain Routing (CIDR) Overview
• Automatic Private IP Addressing (APIPA)

Do

• Send me an e-mail, from the address I can use to contact you, with your first and last names and your daytime or mobile phone number, no later than Tuesday 9/2/2008.

September

In Class

• Rootkits
• SecurityNow! Netcast by Steve Gibson
• Perfect Passwords for use with securing your wireless networks
• Windows SteadyState with Windows Disk Protection (WDP) enabled
• SpinRite data recovery and drive maintenance utility
• Wireless Network Security
  • WEP (Wired Equivalent Privacy) : WEP can easily be cracked in 30 seconds. Do not use WEP if possible.
  • Wi-Fi Protected Access (WPA and WPA2)
  • Wi-Fi Protected Access 2 (WPA2) update for Windows XP SP2
• TCP/IP Tutorials and TCP/IP Links

Read

• Chapter 19 of Data Communications and Networking, 4th Ed.

Do

• Assignment #1, Due Thurs. 9/4/2008
  • Review Questions at the end of Chapter 19,
    • pg. 574, Questions 1 - 10.
  • Submit a typed hardcopy (with questions) at the beginning of class.
    • Make sure to have an extra hardcopy for yourself to use during class. We will go over the review questions and exercises in class, and the computers will be turned off.

In Class

• Review Assignment #1
• ANDing the binary IP address with the binary subnet mask to determine the netid
• Ports can be open or closed or stealth.

Read

• Start reading Chapter 20

Do

• Assignment #2, Due Thur. 9/11/2008
  • Exercise Questions at the end of Chapter 19
    • pg. 574, Questions 11 - 38.
  • Submit a typed hardcopy (with questions) at the beginning of class.
    • Make sure to have an extra hardcopy for yourself to use during class. We will go over the review questions and exercises in class, and the computers will be turned off.
  • Feel free to use this Microsoft Word Template
  • This Binary Conversion Worksheet may help
  • See Appendix C (page 1050) for a review of Exponents and Logarithm
• Test your firewall with ShieldsUp

In Class

• What did you learn about your network from testing with ShieldsUp?

Read

Do

In Class

• Review Chapter 19, Questions 11 - 38, pg. 574
• Decode decimal IP address to dotted quad

Read

• IP subnetting made easy by George Ou
• Daryl's TCP/IP Primer
• Understanding IP Addressing: Everything You Ever Wanted To Know By Chuck Semeria
• Finish reading Chapter 20

Do

• Use the answer sheet for the odd questions for Chapter 19 to verify your homework assignments 1 and 2.

In Class

• How to convert from a decimal IP address to an IPv4 IP address

Read

• Chapter 20

Do

• Assignment #3, Due Tues. 9/23/2008
  • Review and Exercise Questions 1 - 24 at the end of Chapter 20
  • Submit a typed hardcopy (with questions) at the beginning of class.
    • Make sure to have an extra hardcopy for yourself to use during class. We will go over the review questions and exercises in class, and the computers will be turned off.
  • Feel free to use this Microsoft Word Template

In Class

• Routing Information Protocol (RIP)
  • distance-vector routing
• Open Shortest Path First (OSPF)
  • link-state routing
• Building a routing table using the RIP protocol

Read

• Peter Packet

Do

• Create routing tables for Router 3 and Router 4

In Class

• LAN Troubleshooting, baselining, and documenting your network
• Physically secure your servers
• Backup regularly and have an up-to-date off-site backup.
  • Hard drives, flash drives, and computers fail can without warning.
  • Test backup procedures by restoring from a backup to verify that the process is working as expected and to check the integrity of your backup medium.
• Proxy server & caching
  • Be aware that if you use a proxy for an SSL / HTTPS connection your data will be exposed to the proxy server.

Read

• Start reading chapter 21

Do

In Class

• Review Chapter 20's end of chapter questions
• IPv4 datagram checksums
• The checksum for the IPv4 datagram does not have to check the encapsulated data
• The header of the IPv4 packet changes with each visited router, but the data does not
• Chapter 10 discusses the general idea behind the checksum and how it is calculated
• Principle of Least Privilege:
  The principle of least privilege requires that a user or service be given no more privilege or access than necessary to perform their job.
  • Applying the Principle of Least Privilege to User Accounts on Windows XP
  • HOW TO: Create a Custom Default User Profile
  • Open a command prompt window and issue all DOS commands from that window. Avoid typing commands from the Run... dialog since it keeps a history.
  • You can use runas /u:administrator cmd to open a command prompt with elevated rights if you're logged in as a limited user
• Network related commands:
  • arp -a
  • netstat
  • route print
  • nslookup cvibes.net
  • nslookup google.com
  • tracert <domain name or IP address>
  • ipconfig /release
  • ipconfig /renew

Read

• Read Chapter 21

Do

• Assignment #4, Due Thurs. 10/2/2008
  • Review and Exercise Questions 1 - 28 at the end of Chapter 21
  • Submit a typed hardcopy (with questions) at the beginning of class.
    • Make sure to have an extra hardcopy for yourself to use during class. We will go over the review questions and exercises in class, and the computers will be turned off.
  • Feel free to use this Microsoft Word Template

No Classess

October

In Class

• Dynamic Host Configuration Protocol (DHCP)
  • The process of getting an IP address lease from the DHCP server
  • In addition to an IP address, what additional parameters, if any, does a host need to get from the DHCP server?
    • Subnet Mask
    • Default Gateway
    • DNS Server IP address
• Remote Desktop Software
  • Comparison of remote desktop software
  • LogMeIn
  • GoToMyPC
  • Terminal Services / Remote Desktop Connection
• Using Briefcase to synchronize files and directories
  • Langa Letter: Little-Known Options For Syncing Files In Windows
  • How To Use the Briefcase Feature in Windows XP
  • Allway Sync

Read

• ARP cache: What is it and how can it help you?
• Internet Control Message Protocol (ICMP)
• Convert an IP Address from Decimal to Binary Form
• Five things you should know before hooking up your wireless network
• Diary of a Network Administrator

Do

In Class

• Review Chapter 21's end of chapter questions
• Internet Control Message Protocol (ICMP)
• Address Resolution Protocol (ARP)
• Neighbor Discovery Protocol (NDP)
• Maximum Transmission Unit (MTU)
• TCP/IP FAQ

Read

• Read Chapter 22

Do

• Assignment #5, Due Thurs. 10/16/2008
  • Review and Exercise Questions 2 - 32 (only the even numbered questions) at the end of Chapter 22
  • Submit a typed hardcopy (with questions) at the beginning of class.
    • Make sure to have an extra hardcopy for yourself to use during class. We will go over the review questions and exercises in class.
    • Make sure that your assignment has the correct assignment number
  • Feel free to use this Microsoft Word Template

No Classes

No CS607 Class

In Class

• Cisco IOS

Read

• Using Cisco IOS Software
• Cisco Router Configuration Tutorial

In Class

• Outlook Read Receipt Bug
• Sock Stress (Discussed on Security Now! Episodes #164 and #165)
• Interior Gateway Protocol (IGP)

Read

• An Introduction to IGRP [IP Routing] by Cisco

Do

• Listen to Security Now! Episodes #164 and #165

In Class

• Add the KNOPPIX Live OS Boot Disc to your toolkit
• Use ImgBurn to burn .iso's
• Use Nero DiscSpeed to verify the optical media you burn, in a different drive

Troubleshooting Failed Web Browsing

What's wrong with this client's OS?

• Client OS is Windows XP Professional SP2
• Client is no longer able to browse the Internet with IE or Firefox
• All other clients have proper network connectivity and can browse the Internet
• IPconfig shows that the client received a proper IP, subnet, gateway, and DNS entries from the DHCP server
• Ping of local router IP is successful
• Ping of external domain name fails
• Ping of external IP address is successful

Read

• Study for Exam #1 on Thur. 10/30/2008 (See the below entry for 10/30 for details)

Do

• Download and burn a KNOPPIX Live OS Disc for your toolkit using ImgBurn

In Class

• ARP poisoning / spoofing
  • ArpON (Arp handler inspectiON)
  • Cain and Able

Read

Do

• Study for Exam 1 on Thursday.

In Class

• Exam 1, covering, but not limited to the following:
  • Chapter 19: Network Layer: Logical Addressing
  • Chapter 20: Network Layer: Internet Protocol
  • Chapter 21: Network Layer: Address Mapping, Error Reporting, and Multiplexing
  • An Introduction to IGRP [IP Routing] by Cisco
    
  • All keywords from each chapter
  • Status/Troubleshooting Commands
    • ipconfig, arp, ping, etc.
  • Routing Protocols
    • IGP vs EGP
    • RIP vs IGRP vs EIGRP
    • EIGRP vs OSPF
    • What are autonomous systems?
  • All layers of the OSI Reference Model and TCP/IP Protocol Suite
    • Layers
    • Functions of each layer
    • Devices that operate on layers 1, 2, and 3
• The exam will be administered via Blackboard

Read

Do

• Quiz 1, Due: 6PM Sat. 11/1/2008

  • You must start the quiz no later than 6PM on Sat. 11/1/2008.
  • Do not wait until the last minute.
  • If you run into a problem while doing the quiz, call me, so that I can reset your attempt.
  • Try your best to get 100% on this quiz.
  • I recommend that you verify your answers with the book and finish the quiz on paper, before starting it in Blackboard.

November

In Class

• Debriefing for Exam 1
  • Make sure to review all of your answers by opening the Exam in Blackboard
    • If you find a exam/quiz question that you feel you should get credit for but didn't, send me an e-mail with the question number and an explanation/justification of why you should receive credit.
    • Make sure to indicate Exam 1 or Quiz 1
  • Bring in your OSI Reference Model handout
  • Bring in your text book

Read

Do

In Class

• Designing a network
• Data Terminal Equipment (DTE)
• Data Communications Equipment (DCE), aka Data Circuit-terminating Equipment (DCE)
• CSU/DSU

Read

• How a Broadcast Address Works

Do

In Class

• Routing Protocol Convergence
  • In a converged network all routers "agree" on what the network topology looks like.
• Scenario: Building a Network
• Quiz 2
  • 30 minutes only

Read

Do

In Class

• Scenario: Building a Network, continued
• Dynamic Host Configuration Protocol (DHCP)
• DHCP: Spanning Multiple Subnets

Read

• Understanding the protocols underlying dynamic routing
• 10 dumb things IT pros do that can mess up their networks
• Using One DHCP Server To Serve Multiple VLANs on Different Subnets
• Enabling DHCP Support for Multiple Subnets

In Class

• Classfull Subnetting

Subnets (Bits / Networks) Cross-reference

Read

• Classless Addressing, Chapter 19, pg. 555

Do

In Class

Read

Do

In Class

Read

Do

In Class

Read

Do

December

In Class

Read

Do

In Class

Read

Do

In Class

Read

Do

In Class

Read

Do

In Class

Read

Do

In Class

Read

Do

Final Exam (is or is not) Comprehensive?

Covering

Format

Recommended Web Sites and Books