[CNP3] Computer Networking : Principles, Protocols and Practice | INGInious

[CNP3] Computer Networking : Principles, Protocols and Practice

About this course

This INGINIOUS site contains exercises to complement the Computer Networking: Principles, Protocols and Practice ebook. This is work in progress, exercises are developed on github, see https://github.com/cnp3/INGInious-packets and https://github.com/cnp3/INGInious-C

Connecting two hosts / Reliable transfer

Framing techniques

Transfert delay of one frame

Round trip time

Alternating Bit Protocol

Alternating Bit Protocol

Alternating Bit Protocol

Selective repeat

Maximum window size for Go-back-n

Maximum window size for Selective repeat

Using sockets for inter-process communication

Sockets - Creating a socket

Sockets - Creating a listening socket

Sockets - Sending strings

Sockets - An advanced client application

Sockets - An advanced server application

Building a network

Distance Vector Routing

Distance vector routing with poisoning

Link State Routing

Building a network - Multiple choices questions

The transport layer / Serving applications

Serving applications - Multiple Choices Questions

The TFTP protocol

The Domain Name System

The Domain Name System

Analysis of DNS packets

DNS and the UDP port numbers

The DNS transaction identifier

DNS lookup for www.example.com

DNS lookup for www.google.com

DNS lookup for www.computernetworking.info

The HyperText Transfer Protocol

HTTP/1.0 and the underlying transport protocol

HTTP/1.1 and the underlying transport protocol

HTTP/2.0 and the underlying transport protocol

Analysis of an HTTP packet trace

A simple HTTP/2 GET

A longer HTTP/2.0 packet trace

Another HTTP/2.0 trace

TLS and SSH

A first look at telnet

Another telnet trace

A first look at ssh

Another ssh trace

ssh and compression

A first TLS trace

Analyzing packet traces / TCP

Analyzing a packet trace

The source and destination ports in the TCP headers

The first TCP segment sent by a client.

The acknowledgement numbers in the three-way-handshake used by TCP

Utilisation of the SYN and ACK flags during the three-way-handshake used by TCP

Reordering the three-way-handshake

Reordering the three-way-handshake and infering the TCP flags

The TCP sequence numbers used during the data transfer

TCP acknowledgements

Inferring acknowledgment numbers

Reordering the segments exchanged on a connection

Utilisation of the FIN flag

The TCP Timestamp option

The TCP Windows Scale option

The TCP header length

Reordering the segments exchanged on a connection

TCP simultaneous establishment

TCP connection release

Another TCP connection release

TCP connection release

IPv6 Networks

Binary representation of addresses

Expand IPv6 addresses

Compress IPv6 addresses

IPv6 - matching addresses

The IPv6 forwarding table

IPv6 - forwarding packets

IPv6 packet forwarding

Paths in an IPv6 network

IPv6 paths in a network

IPv6 : packet forwarding

IPv6 : the next header -- TCP version

IPv6 : the next header -- UDP version

IPv6 : the next header -- ICMPv6 version

IPv6 : packet fragmentation, a simple example

IPv6 : ping6, a simple example

IPv6 : a sequence of ping6

IPv6 : Hop Limit field with traceroute6

IPv6 : traceroute6

Border Gateway Protocol

Interdomain routing - AS_PATH

BGP - Relation between AS - 1

BGP - Relation between AS - 2

BGP - Relation between AS - 3

BGP - Routing Information Base

Interdomain routing policies - Influence of peering link type

Interdomain routing policies - Another influence of peering link type (prefix from AS1 seen by AS3)

Interdomain routing policies - Another influence of peering link type (prefix from AS2 seen by AS4)

Interdomain routing policies - A more complex topology

The BGP decision process

BGP - interdomain routing - 1

BGP - interdomain routing - 2

BGP - interdomain routing - 3

Local Area Networks: The Spanning Tree Protocol

Comparing BPDUs

State of switches ports

State of switches ports - QCM

The spanning tree protocol - step by step - 1

The spanning tree protocol - step by step - 2

The spanning tree protocol - step by step - 3

The spanning tree protocol

The spanning tree protocol - state of switches ports - 1

The spanning tree protocol - state of switches ports - 2

The spanning tree protocol - BPDU exchanged - 1

The spanning tree protocol - BPDU exchanged - 2

Exercices interactifs IPMininet

Liste des exercices

The DNS transaction identifier

The types of DNS records

Sum of integers - UDP edition

Sum of integers - TCP edition