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[CNP3] Computer Networking : Principles, Protocols and Practice

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
Go-back-n
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
DNS records
Analysis of DNS packets
DNS packets
DNS queries
DNS and the UDP port numbers
The DNS transaction identifier
DNS over TCP
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
A TLS trace
A TLS trace
SMTP over TLS
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