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
Using sockets for inter-process communication
Building a network
The transport layer / Serving applications
The Domain Name System
The Domain Name System
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DNS records
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Analysis of DNS packets
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DNS packets
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DNS queries
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DNS and the UDP port numbers
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The DNS transaction identifier
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DNS over TCP
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DNS lookup for www.example.com
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DNS lookup for www.google.com
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DNS lookup for www.computernetworking.info
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The HyperText Transfer Protocol
HTTP/1.0 and the underlying transport protocol
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HTTP/1.1 and the underlying transport protocol
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HTTP/2.0 and the underlying transport protocol
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Analysis of an HTTP packet trace
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A simple HTTP/2 GET
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A longer HTTP/2.0 packet trace
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Another HTTP/2.0 trace
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TLS and SSH
Analyzing packet traces / TCP
Analyzing a packet trace
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The source and destination ports in the TCP headers
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The first TCP segment sent by a client.
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The acknowledgement numbers in the three-way-handshake used by TCP
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Utilisation of the SYN and ACK flags during the three-way-handshake used by TCP
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Reordering the three-way-handshake
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Reordering the three-way-handshake and infering the TCP flags
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The TCP sequence numbers used during the data transfer
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TCP acknowledgements
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Inferring acknowledgment numbers
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Reordering the segments exchanged on a connection
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Utilisation of the FIN flag
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The TCP Timestamp option
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The TCP Windows Scale option
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The TCP header length
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Reordering the segments exchanged on a connection
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TCP simultaneous establishment
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TCP connection release
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Another TCP connection release
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TCP connection release
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IPv6 Networks
Binary representation of addresses
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Expand IPv6 addresses
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Compress IPv6 addresses
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IPv6 - matching addresses
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The IPv6 forwarding table
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IPv6 - forwarding packets
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IPv6 packet forwarding
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Paths in an IPv6 network
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IPv6 paths in a network
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IPv6 : packet forwarding
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IPv6 : the next header -- TCP version
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IPv6 : the next header -- UDP version
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IPv6 : the next header -- ICMPv6 version
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IPv6 : packet fragmentation, a simple example
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IPv6 : ping6, a simple example
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IPv6 : a sequence of ping6
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IPv6 : Hop Limit field with traceroute6
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IPv6 : traceroute6
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Border Gateway Protocol
Interdomain routing - AS_PATH
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BGP - Relation between AS - 1
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BGP - Relation between AS - 2
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BGP - Relation between AS - 3
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BGP - Routing Information Base
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Interdomain routing policies - Influence of peering link type
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Interdomain routing policies - Another influence of peering link type (prefix from AS1 seen by AS3)
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Interdomain routing policies - Another influence of peering link type (prefix from AS2 seen by AS4)
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Interdomain routing policies - A more complex topology
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The BGP decision process
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BGP - interdomain routing - 1
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BGP - interdomain routing - 2
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BGP - interdomain routing - 3
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Local Area Networks: The Spanning Tree Protocol
Comparing BPDUs
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State of switches ports
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State of switches ports - QCM
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The spanning tree protocol - step by step - 1
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The spanning tree protocol - step by step - 2
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The spanning tree protocol - step by step - 3
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The spanning tree protocol
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The spanning tree protocol - state of switches ports - 1
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The spanning tree protocol - state of switches ports - 2
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The spanning tree protocol - BPDU exchanged - 1
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The spanning tree protocol - BPDU exchanged - 2
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Exercices interactifs IPMininet
Electronic mail