IK2218 Protocols and Principles of the Internet 6.0 credits

Internets protokoll och principer

A continuation course in computer science giving a good insight into and a overview of internet technology and services on Internet.

  • Education cycle

    Second cycle
  • Main field of study

    Information and Communication Technology
  • Grading scale

    A, B, C, D, E, FX, F

Course offerings

Autumn 19 for programme students

Autumn 18 for programme students

Autumn 18 SAP for Study Abroad Programme (SAP)

  • Periods

    Autumn 18 P1 (6.0 credits)

  • Application code


  • Start date


  • End date


  • Language of instruction


  • Campus

    KTH Campus

  • Tutoring time


  • Form of study


  • Number of places

    No limitation

  • Schedule

    Schedule (new window)

  • Target group


Intended learning outcomes

After the course, the student should be able to:

  • generally describe the architecture of the Internet, its services and protocols, including the administration and organization of global Internet resources, such as domain names, IP addresses and Internet standards.
  • in technical detail explain the central protocols that constitute the Internet, including IP, UDP, TCP, ARP, ICMP, SNMP, DNS and SMTP.
  • describe abstractions and principles for network design, including layering, the end-to-end principle, the hourglass model, encapsulation and multiplexing.
  • describe how the procotols are implemented in end systems and routers. Explain how packet forwarding is acheived in a router, including routing, forwarding and error handling.
  • assess different methods for naming, addressing, routing and error detection and how they are used in bridged and routed networks.
  • in detail explain how reliability is provided by the Internet transport protocols such as TCP and SCTP. Describe algorithms for connection control, flow control, congestion control and error handling. The student should also be able to describe the protocol behaviour by studying a packet trace.
  • in detail describe how name lookup on the Internet works and be able to configure a simple name server.
  • describe security aspects within networking and how firewalls and address translation works and why they are necessary.
  • on a general level describe how routing works internally, and between, autonmous systems, as well as explain how they most common VPN technologies work.

Course main content

Overview of the TCP/IP and OSI models, adressing, local and wide-area networks, routing protocols, transport protocols (TCP/UDP), switched and routed networks, name lookup, IPv6, network security and address translation. The course contains several guest lecturers and a thorough lab course.



Single course students: 90 university credits including 45 university credits in Mathematics or Information Technology. English B, or equivalent.

Recommended prerequisites

For those already studying at KTH: one of the courses 2D1320/DD1320 Applied Computer Science, 2D1345/DD1345 Introduction to Computer Science, 2D1343 Computer Science, 2D1344/DD1344 Fundamentals of Computer Science, DD1346 Object-Oriented Program Construction or the equivalent


Behrouz A Forouzan, TCP/IP Protocol Suite, fjärde utgåvan.

James F. Kurose, Keith W. Ross: Computer Networking: A Top-Down Approach, Global Edition, 7/E. ISBN-10: 1292153598, ISBN-13: 9781292153599. Pearson/Addison Wesley. 


  • LABA - Laboratory work, 1.5, grading scale: P, F
  • TENA - Examination, 3.5, grading scale: A, B, C, D, E, FX, F
  • UPGA - Assignment, 1.0, grading scale: P, F

Offered by



Peter Sjödin <psj@kth.se>


Peter Sjödin <psj@kth.se>

Supplementary information

This course has replaced DD2392/DD2393 Principles and Protocols of the Internet.

The course can not be counted in the degree if the student has taken EP2120 or IK1550. 

The content in this course overlaps partly with IK1203 Networks and Communication 7,5 credits. Students that have studied IK1203 is recommended to take IK2215 Advanced internetworking 7,5 credits instead.

The course is given in English.

Add-on studies

IK2215 Advanced Internetworking


Course syllabus valid from: Spring 2019.
Examination information valid from: Spring 2019.