Introduction to Blockchain Networking

Let’s discover in this blog the world of blockchain the technology that today allows peer to peer “trading” using crypto currency, to make it simple like a starter… Introduction Blockchain is a chain of blocks that are pieces of data, database, registers, books, or list of records (of transactions). Those registers are chained, linked to…...

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Is It Sufficient RIP Split-Horizon Rule To Prevent Routing Loops?

Introduction Dynamic routing protocols exchange routing information before populating routing tables and forwarding packets. For this task, RIP (routing information protocol) put into play many machanisms and rules to guarantee that this routing information exchange is consistent: not contradictory among routers. An example of such inconsistency is to receive the same routing information on two…

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Multicast Routing: A Step By Step… Part 1/6

In this post we review a basic multicast routing operation, step by step using output from routers console and traffic packet capture (using wireshark). Introduction This blog is a part of a serie of blogs about multicast routing: How does multicast work In IPv4, multicasting servers use class D range of addresses: 224.0.0.0-239.255.255.255. Some addresses…...

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My First Scapied IPV6 Packet

In this blog, let’s build our first IPv6 packet. Introduction The idea of this lab is to craft an IPv6 packet from scratch using Python and Scapy library. The IDE I use is JetBrains PyCharm Community Edition 2018.3.1 x64 which is available for free at : https://www.jetbrains.com/pycharm/download/download-thanks.html?platform=windows&code=PCC The IDE The IDE interface looks like in…

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