Advanced Network Technologies and Services Laboratory

Networking (Business Data Communication)

This course provides an introduction to fundamental concepts in the design and implementation of computer communication networks, their protocols, and applications. Topics to be covered include: layered network architecture, physical layer and data link protocols, network and transport protocols, routing protocols, and applications. Examples will be drawn from the Internet TCP/IP protocol suite. The course also includes two programming projects, in which students gain hands-on experience with basic network programming and development of simple network applications.

Class Info

Instructor: Shun-Wen Hsiao, NCCU MIS Dept., hsiaom at nccu.edu.tw
Lecture: Tuesday 234 (09:10 ~ 12:00)
Lecture: Wednesday 234 (09:10 ~ 12:00)
Classroom: 260313/250303
TA: 李宜臻 (106356021) and 吳皓銘 (106356005)
Office Hours: By appointment only.
Textbook: "Computer Networking: A Top-Down Approach" by James F. Kurose and Keith W. Ross.
Forum: https://groups.google.com/forum/#!forum/nccu-networking
Lab video: https://www.youtube.com/channel/UCq8s_Qjx8yn2xwYXcTrefkw
Note: This course is taught in English.

Announcements (Fall 2018)

09/24: Homework #1 announced on 25 September 2018. Hand in this homework (hard copy, A4 paper) in the class on 2/3 October 2018. Late hand in is not allowed.
10/04: The Homework #1 answer is announced in the class forum. If you have any question, please post it on the forum and TA will response.
10/04: Homework #2 announced on 04 October 2018. Hand in this homework (hard copy, A4 paper) in the class on 16/17 October 2018. Late hand in is not allowed.
10/18: Homework #3 announced on 18 October 2018. Hand in this homework (hard copy, A4 paper) in the class on 23/24 October 2018. Late hand in is not allowed.
10/31: Homework #4 announced on 31 October 2018. Hand in this homework (hard copy, A4 paper) in the class on 6/7 November 2018. Late hand in is not allowed.
11/07: Here are some examples of midterm. I recommend students to read them before the exam.
11/11: The answer of Q14 in the midterm examples should be 3L/R.
11/28: Homework #5 announced on 28 November 2018. Hand in this homework (hard copy, A4 paper) in the class on 4/5 December 2018. Late hand in is not allowed.
11/28: Please practice writing socket program. We provide the socket server and socket client codes in the course website. Please also google "Berkeley socket programming" for a better understanding of the codes or wiki "Berkeley sockets". Here is a tutorial video 'Berkeley Socket Programming'.
12/3: Announce two more tutorial video: 'Trivial File Transfer Protocol' and 'Endianness (Big endian, little endian & network byte order)'. Please watch them carefully. You need these knowledge to write your term project.
12/19: Homework #7 announced on 19 December 2018. Hand in this homework (hard copy, A4 paper) in the class on 25/26 December 2018. Late hand in is not allowed.
12/21: Homework #8 announced on 21 December 2018. Hand in this homework (hard copy, A4 paper) in the class on 8/9 January 2018. Late hand in is not allowed.
12/21: All rest of the homework (HW07 and HW08) and 2 projects are announced. Lecturer will explain them in the class.

Course Objectives & Learning Outcomes

To review the ideas of networking design.
To understand the layered network architecture
To understand and implement the basic network-based program
To be able to evaluate the design of a protocol and try to improve it.
To be able to develop a network structure suitable for home and enterprise.
To understand the Cloud and its application

They have the knowledge of the most commonly design used in computer network
They understand what hardware or software should be used in a complex computer network.
They can analyze the performance of a protocol, both theoretically and experimentally, and recognize the trade-offs between different protocol design.
They can write socket programs with network libraries.
They have experience working with network devices (by using the own PC or laptop).
They can manage a complex enterprise network.
They have the knowledge to purchase and evaluate Cloud-based machine for deploying network apps.
Thy can monitor the network packet and analyze them.
They can identify network security problem and solve them,

Schedule (Fall 2018)

09/18-19: Syllabus; (1) Computer Network and Internet
09/25-26: (1) Computer Network and Internet
- HW01: announced 25 Sept. and due Oct. 2/3
10/02-03: (2) Application Layer-I
- HW02: announced 4 Oct. and due Oct. 16/17
10/09-10: No class.
- Install Wireshark, and try to finish Wireshark Lab: Getting Started and HTTP. We will have a Homework later that needs Wireshark. If any question, ask in the class or post your question in the forum.
10/16-17: (2) Application Layer-II
- HW03: announced 18 Oct. and due Oct. 23/24
- Note: "Video streaming" topics will be covered later.
10/23-24: (3) Transport Layer-I
10/30-31: (3) Transport Layer
- HW04: announced 31 Oct. and due Nov. 6/7
11/06-07: (3) Transport Layer-II
- We need Python Execution Env to practice socket programming.
11/13-14: Midterm.
- Some examples of Midterm.
- The answer of Q14 has been corrected and updated (11/11).
11/20-21: (4) The Network Layer - Data Plane. Announce Term Project (a).
11/27-28: (5) The Network Layer - Control Plane
- HW05: announced 28 Nov. and due Dec. 4/5
12/04-05: (5) The Network Layer
- HW06: announced 4 Dec. and due 18/19 Dec.
12/11-12: (7) Wireless and Mobile Networks
- Here is the slide provided by the textbook; however it might be subject to change by our guest lecturer.
12/18-19: (6) The Link Layer
- HW07: announced 19 Dec. and due 25/26 Dec.
- HW08: announced 21 Dec. and due 8/9 Jan 2019.
12/25-26: (8) Security
- Here is the slide provided by the textbook; but only part of the topics will be covered in class. Additional materials (pptx) are right here.
- Security and Management (CIA, AAA, Cost, Risk)
- Malware: Eavesdrop, spoof, hijacking, DoS, Worm, Botnet
- Symmetric Key Encryption
  - Caesar Cipher, ROT13
  - DES (p8-15, wiki), *AES
- Asymmetric Encryption (Public Key Encryption), RSA (p8-17~23)
  - Session Key
- Digital Signature
  - Authentication (p8-30~42), Mad-in-the-middle (p8-51)
  - Hash Function, Digest (p8-47)
  - Digital Signature, Electronic Signature (p8-49)
  - CA (p8-53~54) & Certificate (HTTP)
  - Secure Email (p8-55~59)
- * SSL
- * IPSec & IKE (PSK & PKI)
- * WEP, 802.11i
- Firewall, IDS (8.8)
- Web Security
  - OWASP TOP 10 Risk
01/01-02: No class.
01/08-09: (9) *Multimedia Networking
01/15-16: Final. Final covers the following materials and chapters:
- The Network Layer - Data Plane: 4.1, 4.2, 4.3
- The Network Layer - Control Plane: 5.1, 5.2, 5.6
- The Link Layer: 6.1, 6.2, 6.3, 6.4, 6.6, 6.7
- Wireless and Mobile Networks: page 7-1~7-31, page 7-46~7-72
- Cybersecurity: Malware, Web Security, OWASP A1 Injection, A3 Cross-Site Scripting, and Electronic Signature.

Lab (Fall 2018)

Network Commands
1. L2: ipconfig /all or ifconfig /all, arp -a
2. L3: route print, tracert, ping
3. L4: netstat
4. L7: nslookup, telnet, ftp
Socket Programming
1. Simple TCP (server/client) socket programming. Please google "Berkeley socket programming" for a better understanding of the codes or wiki "Berkeley sockets". Here is a tutorial video 'Berkeley Socket Programming'.
2. Echo server/client
3. HTTP server/client
4. Multi-thread HTTP server/client
5. TFTP server/client
Wireshark
- There are some sample of packets right here.
  - HTTP: A simple HTTP request and response (http.cap); a simple HTTP request with a one packet gzip Content-Encoded response (http_gzip.cap).
  - SMTP (smtp.pcap), POP3, IMAP: A short IMAP session (imap.cap)
  - DNS: Try to capture your DNS records.
  - FTP: a complicated file transfer protocol (ftp.pcap)
  - TFTP: read request (tftp_rrq.pcap), write request (tftp_wrq.pcap).
    - See also this video: 'Trivial File Transfer Protocol'
  - ICMP: Try to capture ping messages.
  - DHCP: Try to capture your DHCP messages.
  - ARP: arp.pcap a successful arp request and a failure one.

Grading Policy

Homework (48%): weekly homework
Term Project (12%): socket programming
- #1/2: HTTP, due 23:59 10 Jan 2019.
- #2/2: TFTP, due 23:59 10 Jan 2019. (Lecturer will explain it in the class.)
  - The TFTP server example code and the TFTP client example code are here.
Midterm and Final (40%)

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