{"id":163,"date":"2025-07-31T16:08:01","date_gmt":"2025-07-31T14:08:01","guid":{"rendered":"https:\/\/sciences-tec.fr\/cours\/cahierdetexte4\/2025\/07\/31\/423-filius-reseau\/"},"modified":"2026-05-04T11:06:12","modified_gmt":"2026-05-04T09:06:12","slug":"423-filius-reseau","status":"publish","type":"post","link":"https:\/\/sciences-tec.fr\/cours\/cahierdetexte4\/?p=163","title":{"rendered":"4#23 Filius : r\u00e9seau"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">Il est important de choisir la langue fran\u00e7aise d\u00e8s le d\u00e9marrage du logiciel (on ne peut plus la modifier apr\u00e8s)<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full is-resized\"><img decoding=\"async\" src=\"https:\/\/sciences-tec.fr\/cours\/wp-content\/uploads\/2024\/11\/00_langue.jpg\" alt=\"\" class=\"wp-image-1396\" style=\"width:267px;height:auto\"\/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Aide m\u00e9moire pour le prof, fichier \u00e0 supprimer en cas d&rsquo;erreur de choix : C:\\Users\\ \u00ab\u00a0nom d\u2019utilisateur sur le r\u00e9seau\u00a0\u00bb\\.filius.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">1. Configuration d&rsquo;un r\u00e9seau de base (IP)<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Une adresse IP (Internet Protocol) est un num\u00e9ro d&rsquo;identification unique attribu\u00e9 de fa\u00e7on permanente ou provisoire \u00e0 chaque p\u00e9riph\u00e9rique faisant partie d&rsquo;un m\u00eame r\u00e9seau informatique utilisant l&rsquo;Internet Protocol. L&rsquo;adresse IP est \u00e0 l&rsquo;origine du syst\u00e8me d&rsquo;acheminement (le routage) des paquets de donn\u00e9es sur Internet.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img decoding=\"async\" src=\"https:\/\/sciences-tec.fr\/cours\/wp-content\/uploads\/2024\/11\/01_adressage-ip-1024x716.jpg\" alt=\"\" class=\"wp-image-1398\"\/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Une adresse IP V4 est constitu\u00e9e de 4 membres avec un chiffre allant de 0 \u00e0 255.<br><em>Exemple : 192.168.1.20 ou 168.254.14.2<\/em><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">En mode \u00ab\u00a0conception\u00a0\u00bb (le marteau), il est n\u00e9cessaire d&rsquo;attribuer \u00e0 chaque PC du r\u00e9seau une adresse IP diff\u00e9rente sur le dernier membre, sans modifier les 3 premiers membres (adresse r\u00e9seau) :<br><em>Exemple : <strong>192.168.0<\/strong>.10, <strong>192.168.0<\/strong>.25, <strong>192.168.0<\/strong>.144 : ces machines sont toutes dans le m\u00eame r\u00e9seau.<\/em><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Note : nous attribuons manuellement des adresses IP fixes pour une bonne compr\u00e9hension du r\u00e9seau. N\u00e9anmoins, d\u00e9sormais, les adresses IP sont attribu\u00e9es et distribu\u00e9es automatiquement par un serveur DHCP pr\u00e9sent sur le r\u00e9seau (\u00e0 la maison, la Box r\u00e9alise cette t\u00e2che).<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/sciences-tec.fr\/cours\/wp-content\/uploads\/2024\/11\/02_adressage_IP2-1024x715.jpg\" alt=\"\" class=\"wp-image-1405\"\/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Le r\u00e9seau est configur\u00e9.<br>En mode simulation, nous allons v\u00e9rifier son bon fonctionnement.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/sciences-tec.fr\/cours\/wp-content\/uploads\/2024\/11\/03-simulation-1024x492.jpg\" alt=\"\" class=\"wp-image-1407\"\/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">En mode \u00ab\u00a0simulation\u00a0\u00bb (bouton \u00ab\u00a0Play\u00a0\u00bb vert), on peut installer des logiciels sur les PC et simuler le fonctionnement.<br>Apr\u00e8s un double-clic sur \u00ab\u00a0Installation des logiciels\u00a0\u00bb, nous installerons le logiciel \u00ab\u00a0Ligne de commande\u00a0\u00bb.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full is-resized\"><img decoding=\"async\" src=\"https:\/\/sciences-tec.fr\/cours\/wp-content\/uploads\/2024\/11\/04_installation_programme.jpg\" alt=\"\" class=\"wp-image-1409\" style=\"width:554px;height:auto\"\/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">On peut d\u00e9sormais lancer le logiciel \u00ab\u00a0Ligne de commande\u00a0\u00bb, et taper la commande ping.<br>Dans le cadre du diagnostic r\u00e9seau, la ligne de commande Ping nous renseigne sur la qualit\u00e9 de la connexion qui relie deux ordinateurs (viabilit\u00e9 et vitesse).<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Dans l&rsquo;exemple ci-dessous, je r\u00e9alise un ping depuis le PC 192.168.0.10 vers le PC 192.168.0.11 (c&rsquo;est donc \u00e0 adapter selon l&rsquo;IP de la machine \u00e0 tester) :<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" src=\"https:\/\/sciences-tec.fr\/cours\/wp-content\/uploads\/2024\/11\/05_ping.jpg\" alt=\"\" class=\"wp-image-1411\"\/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">2. Connexion sans fil : le Wifi<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Nous allons supprimer les c\u00e2bles et les remplacer par des ondes radios (wifi). Le wifi est tr\u00e8s utilis\u00e9 pour des raisons pratiques mais pour des performances optimales, il est recommand\u00e9 d&rsquo;utiliser des c\u00e2bles Ethernet de cat\u00e9gorie 5E minimum pour relier vos diff\u00e9rents \u00e9quipements (box, PC, d\u00e9codeur TV \u2026). En effet, les technologies sans fil comme le wifi peuvent limiter fortement le d\u00e9bit utile, en fonction de la typologie de votre logement (type de wifi, distance, murs porteurs \u2026).<br><strong>Le wifi remplace simplement les c\u00e2bles, ce n&rsquo;est pas une connexion Internet.<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/sciences-tec.fr\/cours\/wp-content\/uploads\/2024\/11\/06_wifi-1024x792.jpg\" alt=\"\" class=\"wp-image-1416\"\/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Nous allons r\u00e9aliser un nouveau test \u00ab\u00a0ping\u00a0\u00bb en mode simulation.<br><strong>Astuce<\/strong> : Il y a un historique des commandes utilis\u00e9es (cela \u00e9vite de les r\u00e9\u00e9crire), on peut y acc\u00e9der gr\u00e2ce aux fl\u00e8ches haut et bas du clavier.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" src=\"https:\/\/sciences-tec.fr\/cours\/wp-content\/uploads\/2024\/11\/07_ping_wifi.jpg\" alt=\"\" class=\"wp-image-1418\"\/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Que constates-tu au niveau des vitesses ?<\/strong><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">3. R\u00e9seau r\u00e9aliste<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>R\u00e9alisez un r\u00e9seau r\u00e9aliste : votre box \u00e0 la maison int\u00e8gre un switch.<\/strong><br>Vous devez cr\u00e9er un r\u00e9seau mixte avec des connexions filaires et sans fil repr\u00e9sentant votre r\u00e9seau domestique (ce logiciel ne repr\u00e9sente que les PC et PC portables, mais il existe beaucoup d&rsquo;autres clients tels que la PS5, la switch, votre smartphone, peut-\u00eatre votre porte de garage&#8230;).<br>Chaque \u00e9quipement doit avoir une adresse IP unique et donc diff\u00e9rente des autres appareils du m\u00eame r\u00e9seau.<br>Rappel : vous ne devez modifier que le dernier chiffre de l&rsquo;adresse IP dans un m\u00eame r\u00e9seau. R\u00e9alisez des ping pour v\u00e9rifier la bonne configuration de votre r\u00e9seau.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/sciences-tec.fr\/cours\/wp-content\/uploads\/2024\/11\/08_reseau_maison-1-1024x882.jpg\" alt=\"\" class=\"wp-image-1435\"\/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">4. Et en vrai ?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Vous pouvez r\u00e9cup\u00e9rer l&rsquo;adresse IP des \u00e9quipements de votre maison gr\u00e2ce \u00e0 diff\u00e9rents moyens :<br>\u2022 l&rsquo;appareil indique directement son adresse IP (dans un menu d\u00e9di\u00e9, sur la t\u00e9l\u00e9vision par exemple)<br>\u2022 avec un logiciel qui scanne l&rsquo;ensemble de votre r\u00e9seau (par exemple Angry IP scanner)<br>\u2022 sur un PC Windows, vous pouvez ex\u00e9cuter une commande : <br> a. Recherchez le logiciel \u00ab\u00a0Invite de commandes\u00a0\u00bb ou \u00ab\u00a0cmd\u00a0\u00bb puis tapez la commande \u00ab\u00a0ipconfig\u00a0\u00bb<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/sciences-tec.fr\/cours\/wp-content\/uploads\/2024\/11\/09-ipconfi_all-1024x953.jpg\" alt=\"\" class=\"wp-image-1424\"\/><\/figure>\n\n\n\n<ul class=\"wp-block-list\">\n<li>b. <strong>Ex\u00e9cutez la commande \u00ab\u00a0ipconfig\u00a0\u00bb sur le PC que vous utilisez en classe et notez vos noms et vos IP au tableau.<\/strong><\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/sciences-tec.fr\/cours\/cahierdetexte4\/wp-content\/uploads\/sites\/3\/2026\/05\/IMG_9054-1024x768.jpeg\" alt=\"\" class=\"wp-image-1309\"\/><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>Il est important de choisir la langue fran\u00e7aise d\u00e8s le d\u00e9marrage du logiciel (on ne peut plus la modifier apr\u00e8s) Aide m\u00e9moire pour le prof, fichier \u00e0 supprimer en cas d&rsquo;erreur de choix : C:\\Users\\ \u00ab\u00a0nom d\u2019utilisateur sur le r\u00e9seau\u00a0\u00bb\\.filius. 1. Configuration d&rsquo;un r\u00e9seau de base (IP) Une adresse IP (Internet Protocol) est un num\u00e9ro [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":164,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[9],"tags":[6],"class_list":["post-163","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-structure-fonctionnement-comportement-des-objets-et-des-systemes-techniques-a-comprendre","tag-4eme"],"acf":[],"mb":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.7 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>4#23 Filius : r\u00e9seau - TECHNOLOGIE | 4\u00e8me CONTENU DE LA S\u00c9ANCE<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/sciences-tec.fr\/cours\/cahierdetexte4\/?p=163\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"4#23 Filius : r\u00e9seau - TECHNOLOGIE | 4\u00e8me CONTENU DE LA S\u00c9ANCE\" \/>\n<meta property=\"og:description\" content=\"Il est important de choisir la langue fran\u00e7aise d\u00e8s le d\u00e9marrage du logiciel (on ne peut plus la modifier apr\u00e8s) Aide m\u00e9moire pour le prof, fichier \u00e0 supprimer en cas d&rsquo;erreur de choix : C:Users \u00ab\u00a0nom d\u2019utilisateur sur le r\u00e9seau\u00a0\u00bb.filius. 1. Configuration d&rsquo;un r\u00e9seau de base (IP) Une adresse IP (Internet Protocol) est un num\u00e9ro [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/sciences-tec.fr\/cours\/cahierdetexte4\/?p=163\" \/>\n<meta property=\"og:site_name\" content=\"TECHNOLOGIE | 4\u00e8me CONTENU DE LA S\u00c9ANCE\" \/>\n<meta property=\"article:published_time\" content=\"2025-07-31T14:08:01+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-05-04T09:06:12+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/sciences-tec.fr\/cours\/cahierdetexte4\/wp-content\/uploads\/sites\/3\/2025\/07\/reseau.png\" \/>\n\t<meta property=\"og:image:width\" content=\"1127\" \/>\n\t<meta property=\"og:image:height\" content=\"853\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"Nicolas Savalle\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u00c9crit par\" \/>\n\t<meta name=\"twitter:data1\" content=\"Nicolas Savalle\" \/>\n\t<meta name=\"twitter:label2\" content=\"Dur\u00e9e de lecture estim\u00e9e\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/sciences-tec.fr\\\/cours\\\/cahierdetexte4\\\/?p=163#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/sciences-tec.fr\\\/cours\\\/cahierdetexte4\\\/?p=163\"},\"author\":{\"name\":\"Nicolas Savalle\",\"@id\":\"https:\\\/\\\/sciences-tec.fr\\\/cours\\\/cahierdetexte4\\\/#\\\/schema\\\/person\\\/b171e5f401707ffaefb35f3a9b01ce68\"},\"headline\":\"4#23 Filius : r\u00e9seau\",\"datePublished\":\"2025-07-31T14:08:01+00:00\",\"dateModified\":\"2026-05-04T09:06:12+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/sciences-tec.fr\\\/cours\\\/cahierdetexte4\\\/?p=163\"},\"wordCount\":719,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\\\/\\\/sciences-tec.fr\\\/cours\\\/cahierdetexte4\\\/#\\\/schema\\\/person\\\/b171e5f401707ffaefb35f3a9b01ce68\"},\"image\":{\"@id\":\"https:\\\/\\\/sciences-tec.fr\\\/cours\\\/cahierdetexte4\\\/?p=163#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/sciences-tec.fr\\\/cours\\\/cahierdetexte4\\\/wp-content\\\/uploads\\\/sites\\\/3\\\/2025\\\/07\\\/reseau.png\",\"keywords\":[\"4\u00e8me\"],\"articleSection\":[\"Structure, fonctionnement, comportement : des OST \u00e0 comprendre\"],\"inLanguage\":\"fr-FR\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\\\/\\\/sciences-tec.fr\\\/cours\\\/cahierdetexte4\\\/?p=163#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/sciences-tec.fr\\\/cours\\\/cahierdetexte4\\\/?p=163\",\"url\":\"https:\\\/\\\/sciences-tec.fr\\\/cours\\\/cahierdetexte4\\\/?p=163\",\"name\":\"4#23 Filius : r\u00e9seau - 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