{"id":243585,"date":"2024-07-04T05:30:00","date_gmt":"2024-07-04T05:30:00","guid":{"rendered":"https:\/\/datascientest.com\/?p=243585"},"modified":"2024-06-27T15:34:05","modified_gmt":"2024-06-27T15:34:05","slug":"adresse-mac-tout-savoir","status":"publish","type":"post","link":"https:\/\/datascientest.com\/adresse-mac-tout-savoir","title":{"rendered":"Adresse MAC : Qu&rsquo;est-ce que c&rsquo;est ? \u00c0 quoi \u00e7a sert ?"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"243585\" class=\"elementor elementor-243585\" data-elementor-post-type=\"post\">\n\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-4b45811 e-flex e-con-boxed e-con\" data-id=\"4b45811\" data-element_type=\"container\" data-settings=\"{&quot;content_width&quot;:&quot;boxed&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-29525ce elementor-widget elementor-widget-heading\" data-id=\"29525ce\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<style>\/*! elementor - v3.15.0 - 02-08-2023 *\/\n.elementor-heading-title{padding:0;margin:0;line-height:1}.elementor-widget-heading .elementor-heading-title[class*=elementor-size-]>a{color:inherit;font-size:inherit;line-height:inherit}.elementor-widget-heading .elementor-heading-title.elementor-size-small{font-size:15px}.elementor-widget-heading .elementor-heading-title.elementor-size-medium{font-size:19px}.elementor-widget-heading .elementor-heading-title.elementor-size-large{font-size:29px}.elementor-widget-heading .elementor-heading-title.elementor-size-xl{font-size:39px}.elementor-widget-heading .elementor-heading-title.elementor-size-xxl{font-size:59px}<\/style><p class=\"elementor-heading-title elementor-size-default\">Une adresse MAC (Media Access Control) est un identifiant unique attribu\u00e9 \u00e0 chaque interface r\u00e9seau d'un p\u00e9riph\u00e9rique. Elle est essentielle pour la communication au sein des r\u00e9seaux locaux. Elles sont inscrites dans le mat\u00e9riel r\u00e9seau lors de sa fabrication et jouent un r\u00f4le crucial dans l'identification des appareils sur un r\u00e9seau.<\/p>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-27e7428 elementor-widget elementor-widget-text-editor\" data-id=\"27e7428\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<style>\/*! elementor - v3.15.0 - 02-08-2023 *\/\n.elementor-widget-text-editor.elementor-drop-cap-view-stacked .elementor-drop-cap{background-color:#69727d;color:#fff}.elementor-widget-text-editor.elementor-drop-cap-view-framed .elementor-drop-cap{color:#69727d;border:3px solid;background-color:transparent}.elementor-widget-text-editor:not(.elementor-drop-cap-view-default) .elementor-drop-cap{margin-top:8px}.elementor-widget-text-editor:not(.elementor-drop-cap-view-default) .elementor-drop-cap-letter{width:1em;height:1em}.elementor-widget-text-editor .elementor-drop-cap{float:left;text-align:center;line-height:1;font-size:50px}.elementor-widget-text-editor .elementor-drop-cap-letter{display:inline-block}<\/style>\t\t\t\t<p><span style=\"font-weight: 400;\">En plus de leur r\u00f4le dans l&rsquo;identification et la communication, les adresses MAC jouent un r\u00f4le important dans la <\/span><b>s\u00e9curit\u00e9 r\u00e9seau<\/b><span style=\"font-weight: 400;\">. Elles peuvent \u00eatre utilis\u00e9es pour filtrer les appareils autoris\u00e9s \u00e0 se connecter \u00e0 un r\u00e9seau, offrant ainsi une couche de s\u00e9curit\u00e9 suppl\u00e9mentaire contre les acc\u00e8s non autoris\u00e9s.<\/span><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-4096d7b e-flex e-con-boxed e-con\" data-id=\"4096d7b\" data-element_type=\"container\" data-settings=\"{&quot;content_width&quot;:&quot;boxed&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-b69413c elementor-widget elementor-widget-heading\" data-id=\"b69413c\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Comprendre les adresses MAC<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8bb1d24 elementor-widget elementor-widget-heading\" data-id=\"8bb1d24\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h4 class=\"elementor-heading-title elementor-size-medium\">Leur structure<\/h4>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d24d7d9 elementor-widget elementor-widget-text-editor\" data-id=\"d24d7d9\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">Les adresses MAC sont des identifiants uniques compos\u00e9s de <\/span><b>48 bits<\/b><span style=\"font-weight: 400;\">, soit <\/span><b>6 octets<\/b><span style=\"font-weight: 400;\">, qui sont attribu\u00e9s aux interfaces r\u00e9seau des p\u00e9riph\u00e9riques. Ces adresses sont souvent repr\u00e9sent\u00e9es en forme hexad\u00e9cimale, une notation plus concise et lisible pour les humains. Une adresse MAC typique ressemble \u00e0 ceci : 00:1A:2B:3C:4D:5E. Chaque paire de caract\u00e8res hexad\u00e9cimaux (00, 1A, 2B, etc.) repr\u00e9sente un octet, ou 8 bits, de l&rsquo;adresse MAC.<\/span><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-79e8ce3 elementor-widget elementor-widget-html\" data-id=\"79e8ce3\" data-element_type=\"widget\" data-widget_type=\"html.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<style type=\"text\/css\">\r\n.tg  {border-collapse:collapse;border-spacing:0;}\r\n.tg td{border-color:black;border-style:solid;border-width:1px;font-family:Arial, sans-serif;font-size:14px;\r\n  overflow:hidden;padding:10px 5px;word-break:normal;}\r\n.tg th{border-color:black;border-style:solid;border-width:1px;font-family:Arial, sans-serif;font-size:14px;\r\n  font-weight:normal;overflow:hidden;padding:10px 5px;word-break:normal;}\r\n.tg .tg-op7m{background-color:#EFEFEF;font-size:16px;font-weight:bold;text-align:center;vertical-align:top}\r\n.tg .tg-mehl{background-color:#FFF2CC;font-size:16px;font-weight:bold;text-align:center;vertical-align:top}\r\n.tg .tg-ck00{background-color:#D0E0E3;font-size:16px;font-weight:bold;text-align:center;vertical-align:top}\r\n<\/style>\r\n<table class=\"tg\" style=\"undefined;table-layout: fixed; width: 600px\"><colgroup>\r\n<col style=\"width: 100px\">\r\n<col style=\"width: 100px\">\r\n<col style=\"width: 100px\">\r\n<col style=\"width: 100px\">\r\n<col style=\"width: 100px\">\r\n<col style=\"width: 100px\">\r\n<\/colgroup>\r\n<thead>\r\n  <tr>\r\n    <th class=\"tg-op7m\"><span style=\"font-weight:700;font-style:normal;text-decoration:none;color:#000;background-color:transparent\">8 bits<\/span><\/th>\r\n    <th class=\"tg-op7m\"><span style=\"font-weight:700;font-style:normal;text-decoration:none;color:#000;background-color:transparent\">8 bits<\/span><\/th>\r\n    <th class=\"tg-op7m\"><span style=\"font-weight:700;font-style:normal;text-decoration:none;color:#000;background-color:transparent\">8 bits<\/span><\/th>\r\n    <th class=\"tg-op7m\"><span style=\"font-weight:700;font-style:normal;text-decoration:none;color:#000;background-color:transparent\">8 bits<\/span><\/th>\r\n    <th class=\"tg-op7m\"><span style=\"font-weight:700;font-style:normal;text-decoration:none;color:#000;background-color:transparent\">8 bits<\/span><\/th>\r\n    <th class=\"tg-op7m\"><span style=\"font-weight:700;font-style:normal;text-decoration:none;color:#000;background-color:transparent\">8 bits<\/span><\/th>\r\n  <\/tr><\/thead>\r\n<tbody>\r\n  <tr>\r\n    <td class=\"tg-mehl\"><span style=\"font-weight:700;font-style:normal;text-decoration:none;color:#000;background-color:transparent\">00<\/span><\/td>\r\n    <td class=\"tg-mehl\"><span style=\"font-weight:700;font-style:normal;text-decoration:none;color:#000;background-color:transparent\">1A<\/span><\/td>\r\n    <td class=\"tg-mehl\"><span style=\"font-weight:700;font-style:normal;text-decoration:none;color:#000;background-color:transparent\">2B<\/span><\/td>\r\n    <td class=\"tg-ck00\"><span style=\"font-weight:700;font-style:normal;text-decoration:none;color:#000;background-color:transparent\">3C<\/span><\/td>\r\n    <td class=\"tg-ck00\"><span style=\"font-weight:700;font-style:normal;text-decoration:none;color:#000;background-color:transparent\">4D<\/span><\/td>\r\n    <td class=\"tg-ck00\"><span style=\"font-weight:700;font-style:normal;text-decoration:none;color:#000;background-color:transparent\">5E<\/span><\/td>\r\n  <\/tr>\r\n  <tr>\r\n    <td class=\"tg-mehl\" colspan=\"3\"><span style=\"font-weight:700;font-style:normal;text-decoration:none;color:#000;background-color:transparent\">Identifiant unique du constructeur<\/span><\/td>\r\n    <td class=\"tg-ck00\" colspan=\"3\"><span style=\"font-weight:700;font-style:normal;text-decoration:none;color:#000;background-color:transparent\">Identifiant unique de l\u2019appareil<\/span><\/td>\r\n  <\/tr>\r\n<\/tbody><\/table>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f60608d elementor-widget elementor-widget-text-editor\" data-id=\"f60608d\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">Leur structure est divis\u00e9e en 2 parties :\u00a0<\/span><\/p><ul><li><b>Organizationally Unique Identifier (OUI) :<\/b><span style=\"font-weight: 400;\"> Les 24 premiers bits de l&rsquo;adresse MAC sont r\u00e9serv\u00e9s \u00e0 l&rsquo;identification du fabricant de la carte r\u00e9seau ou de l&rsquo;interface r\u00e9seau. Cet identifiant unique est attribu\u00e9 par l&rsquo;<\/span><b>IEEE <\/b><span style=\"font-weight: 400;\">(<\/span><b>Institute of Electrical and Electronics Engineers<\/b><span style=\"font-weight: 400;\">) et garantit que chaque fabricant a une plage d&rsquo;adresses unique.<\/span><\/li><li><b>Identifiant sp\u00e9cifique de l&rsquo;appareil :<\/b><span style=\"font-weight: 400;\"> Les 24 bits restants sont utilis\u00e9s par le fabricant pour attribuer un identifiant unique \u00e0 chaque produit fabriqu\u00e9. Cela permet d&rsquo;assurer que chaque adresse MAC est unique \u00e0 l&rsquo;\u00e9chelle mondiale.<\/span><\/li><\/ul>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-61129dd elementor-widget elementor-widget-text-editor\" data-id=\"61129dd\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">La forme hexad\u00e9cimale est utilis\u00e9e pour repr\u00e9senter les adresses MAC en raison de sa concision et de sa clart\u00e9. Dans cette notation, chaque chiffre repr\u00e9sente <\/span><b>quatre bits<\/b><span style=\"font-weight: 400;\"> (un demi-octet), ce qui permet de condenser les 48 bits en 12 caract\u00e8res hexad\u00e9cimaux. Par exemple, l&rsquo;adresse binaire repr\u00e9sentant l\u2019adresse MAC ci-dessus serait not\u00e9e ainsi : 00000000 00011010 00101011 00111100 01001101 01011110, ce qui est bien moins compr\u00e9hensible.<\/span><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f9ff7ed elementor-align-center button-principale elementor-widget elementor-widget-button\" data-id=\"f9ff7ed\" data-element_type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm elementor-animation-grow\" href=\"https:\/\/datascientest.com\/formation-administrateur-systemes-reseaux-et-cloud-alternance\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t<span class=\"elementor-button-text\">Devenir expert r\u00e9seaux<\/span>\n\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-d854abe e-flex e-con-boxed e-con\" data-id=\"d854abe\" data-element_type=\"container\" data-settings=\"{&quot;content_width&quot;:&quot;boxed&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-60af299 elementor-widget elementor-widget-heading\" data-id=\"60af299\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Adresse MAC versus Adresse IP<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3965044 elementor-widget elementor-widget-text-editor\" data-id=\"3965044\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">Il est essentiel de comprendre la diff\u00e9rence entre une adresse MAC et une adresse IP, car elles jouent des r\u00f4les compl\u00e9mentaires dans la communication r\u00e9seau.<\/span><\/p><ul><li><b>Adresse MAC :<\/b><span style=\"font-weight: 400;\"> Une adresse MAC est un identifiant unique permanent attribu\u00e9 \u00e0 une interface r\u00e9seau. Elle op\u00e8re au niveau de la couche 2 du mod\u00e8le OSI (couche liaison de donn\u00e9es) et est utilis\u00e9e pour la communication au sein d&rsquo;un r\u00e9seau local.<\/span><\/li><li><b>Adresse IP :<\/b><span style=\"font-weight: 400;\"> Une adresse IP est un identifiant attribu\u00e9 \u00e0 un p\u00e9riph\u00e9rique pour permettre sa localisation et sa communication sur un r\u00e9seau. Contrairement \u00e0 l&rsquo;adresse MAC, l&rsquo;adresse IP peut changer en fonction de la configuration du r\u00e9seau et de la connexion de l&rsquo;appareil. Elle op\u00e8re au niveau de la couche 3 du mod\u00e8le OSI (couche r\u00e9seau).<\/span><\/li><\/ul>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-5a1006f e-flex e-con-boxed e-con\" data-id=\"5a1006f\" data-element_type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;,&quot;content_width&quot;:&quot;boxed&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-230b48c e-con-full e-flex e-con\" data-id=\"230b48c\" data-element_type=\"container\" data-settings=\"{&quot;content_width&quot;:&quot;full&quot;}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-35b5b42 elementor-widget elementor-widget-image\" data-id=\"35b5b42\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<style>\/*! elementor - v3.15.0 - 02-08-2023 *\/\n.elementor-widget-image{text-align:center}.elementor-widget-image a{display:inline-block}.elementor-widget-image a img[src$=\".svg\"]{width:48px}.elementor-widget-image img{vertical-align:middle;display:inline-block}<\/style>\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"512\" height=\"512\" src=\"https:\/\/datascientest.com\/wp-content\/uploads\/2024\/06\/image1-3.png\" class=\"attachment-large size-large wp-image-243597\" alt=\"\" srcset=\"https:\/\/datascientest.com\/wp-content\/uploads\/2024\/06\/image1-3.png 512w, https:\/\/datascientest.com\/wp-content\/uploads\/2024\/06\/image1-3-300x300.png 300w, https:\/\/datascientest.com\/wp-content\/uploads\/2024\/06\/image1-3-150x150.png 150w\" sizes=\"(max-width: 512px) 100vw, 512px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-6d6c882 e-con-full e-flex e-con\" data-id=\"6d6c882\" data-element_type=\"container\" data-settings=\"{&quot;content_width&quot;:&quot;full&quot;}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-36000c3 elementor-widget elementor-widget-text-editor\" data-id=\"36000c3\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p><b>Pour faire simple, l&rsquo;adresse MAC identifie l&rsquo;interface physique d&rsquo;un p\u00e9riph\u00e9rique, tandis que l&rsquo;adresse IP identifie la connexion logique du p\u00e9riph\u00e9rique sur un r\u00e9seau.<\/b><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-8652379 e-flex e-con-boxed e-con\" data-id=\"8652379\" data-element_type=\"container\" data-settings=\"{&quot;content_width&quot;:&quot;boxed&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-539ba55 elementor-widget elementor-widget-heading\" data-id=\"539ba55\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Trouver son adresse MAC<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f725544 elementor-widget elementor-widget-text-editor\" data-id=\"f725544\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">Cela d\u00e9pendra du syst\u00e8me d\u2019exploitation que vous utilisez. A noter qu\u2019elle est souvent mentionn\u00e9e comme \u201cadresse physique\u201d.<\/span><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9bc05ee elementor-widget elementor-widget-heading\" data-id=\"9bc05ee\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h4 class=\"elementor-heading-title elementor-size-medium\">1. Windows <\/h4>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-bda23b7 elementor-widget elementor-widget-text-editor\" data-id=\"bda23b7\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">Dans une invite de commande <\/span><b>cmd<\/b><span style=\"font-weight: 400;\">, tapez <\/span><b>ipconfig \/all<\/b><span style=\"font-weight: 400;\">. Vous obtiendrez un r\u00e9sultat similaire \u00e0 celui-ci :<\/span><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0375dd7 elementor-widget elementor-widget-image\" data-id=\"0375dd7\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"826\" height=\"507\" src=\"https:\/\/datascientest.com\/wp-content\/uploads\/2024\/06\/image2-3.png\" class=\"attachment-full size-full wp-image-243604\" alt=\"\" srcset=\"https:\/\/datascientest.com\/wp-content\/uploads\/2024\/06\/image2-3.png 826w, https:\/\/datascientest.com\/wp-content\/uploads\/2024\/06\/image2-3-300x184.png 300w, https:\/\/datascientest.com\/wp-content\/uploads\/2024\/06\/image2-3-768x471.png 768w\" sizes=\"(max-width: 826px) 100vw, 826px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9c37a0e elementor-align-center button-principale elementor-widget elementor-widget-button\" data-id=\"9c37a0e\" data-element_type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm elementor-animation-grow\" href=\"https:\/\/datascientest.com\/formation-administrateur-systemes-reseaux-et-cloud-alternance\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t<span class=\"elementor-button-text\">Devenir expert r\u00e9seaux<\/span>\n\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-38c6fd8 elementor-widget elementor-widget-text-editor\" data-id=\"38c6fd8\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">Si vous avez plusieurs adaptateurs r\u00e9seaux, alors plusieurs r\u00e9sultats seront affich\u00e9s, chacun avec leur adresse MAC.<\/span><\/p><p><span style=\"font-weight: 400;\">Si vous pr\u00e9f\u00e9rez utiliser l\u2019interface graphique, alors vous pouvez voir cette information dans les propri\u00e9t\u00e9 de votre p\u00e9riph\u00e9rique r\u00e9seau, en allant dans <\/span><b>Param\u00e8tres<\/b><span style=\"font-weight: 400;\"> puis <\/span><b>R\u00e9seau et Internet.<\/b><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5c310dd elementor-widget elementor-widget-image\" data-id=\"5c310dd\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"1011\" height=\"646\" src=\"https:\/\/datascientest.com\/wp-content\/uploads\/2024\/06\/image3-3.png\" class=\"attachment-full size-full wp-image-243608\" alt=\"\" srcset=\"https:\/\/datascientest.com\/wp-content\/uploads\/2024\/06\/image3-3.png 1011w, https:\/\/datascientest.com\/wp-content\/uploads\/2024\/06\/image3-3-300x192.png 300w, https:\/\/datascientest.com\/wp-content\/uploads\/2024\/06\/image3-3-768x491.png 768w\" sizes=\"(max-width: 1011px) 100vw, 1011px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6b260f3 elementor-widget elementor-widget-heading\" data-id=\"6b260f3\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h4 class=\"elementor-heading-title elementor-size-medium\">2. Linux<\/h4>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-379363a elementor-widget elementor-widget-text-editor\" data-id=\"379363a\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">Via un terminal, avec la commande <\/span><b>ip addr show<\/b><span style=\"font-weight: 400;\">, comme illustr\u00e9 dans la capture ci-dessous : <\/span><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9926634 elementor-widget elementor-widget-image\" data-id=\"9926634\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"1080\" height=\"517\" src=\"https:\/\/datascientest.com\/wp-content\/uploads\/2024\/06\/image4-3.png\" class=\"attachment-full size-full wp-image-243609\" alt=\"\" srcset=\"https:\/\/datascientest.com\/wp-content\/uploads\/2024\/06\/image4-3.png 1080w, https:\/\/datascientest.com\/wp-content\/uploads\/2024\/06\/image4-3-300x144.png 300w, https:\/\/datascientest.com\/wp-content\/uploads\/2024\/06\/image4-3-1024x490.png 1024w, https:\/\/datascientest.com\/wp-content\/uploads\/2024\/06\/image4-3-768x368.png 768w\" sizes=\"(max-width: 1080px) 100vw, 1080px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-40fa015 elementor-widget elementor-widget-heading\" data-id=\"40fa015\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h4 class=\"elementor-heading-title elementor-size-medium\">3. Autres OS<\/h4>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8f6ec00 elementor-widget elementor-widget-text-editor\" data-id=\"8f6ec00\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">Que ce soit sur Macintosh, Android ou iOS, la fa\u00e7on de trouver son adresse MAC est toujours plus ou moins similaire. Vous trouverez cette information dans les param\u00e8tres du p\u00e9riph\u00e9rique souhait\u00e9.<\/span><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-ce87c6c e-flex e-con-boxed e-con\" data-id=\"ce87c6c\" data-element_type=\"container\" data-settings=\"{&quot;content_width&quot;:&quot;boxed&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-3866085 elementor-widget elementor-widget-heading\" data-id=\"3866085\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">S\u00e9curit\u00e9 et confidentialit\u00e9<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8a5e0c1 elementor-widget elementor-widget-text-editor\" data-id=\"8a5e0c1\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">Les adresses MAC peuvent exposer les appareils \u00e0 des risques de suivi et de surveillance, car elles sont <\/span><b>uniques <\/b><span style=\"font-weight: 400;\">et <\/span><b>permanentes<\/b><span style=\"font-weight: 400;\">. Pour renforcer la s\u00e9curit\u00e9, de nombreux p\u00e9riph\u00e9riques et syst\u00e8mes d&rsquo;exploitation permettent de masquer ou de changer l&rsquo;adresse MAC.\u00a0<\/span><\/p><p><span style=\"font-weight: 400;\">Les administrateurs r\u00e9seau utilisent souvent le <\/span><b>filtrage MAC<\/b><span style=\"font-weight: 400;\"> pour autoriser uniquement certains appareils \u00e0 se connecter au r\u00e9seau, ajoutant ainsi une couche de protection contre les acc\u00e8s non autoris\u00e9s. Il est important de g\u00e9rer et de prot\u00e9ger ces adresses pour maintenir la confidentialit\u00e9 et la s\u00e9curit\u00e9 du r\u00e9seau.<\/span><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7e0f7e3 elementor-align-center button-principale elementor-widget elementor-widget-button\" data-id=\"7e0f7e3\" data-element_type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm elementor-animation-grow\" href=\"https:\/\/datascientest.com\/formation-administrateur-systemes-reseaux-et-cloud-alternance\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t<span class=\"elementor-button-text\">Devenir expert r\u00e9seaux<\/span>\n\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-a23482e e-flex e-con-boxed e-con\" data-id=\"a23482e\" data-element_type=\"container\" data-settings=\"{&quot;content_width&quot;:&quot;boxed&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-d609708 elementor-widget elementor-widget-heading\" data-id=\"d609708\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Pour conclure<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-19ed287 elementor-widget elementor-widget-text-editor\" data-id=\"19ed287\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">Comprendre et g\u00e9rer les adresses MAC est essentiel pour <strong>assurer une communication efficace et s\u00e9curis\u00e9e dans les r\u00e9seaux locaux<\/strong>. En connaissant leur structure, leur utilit\u00e9 et les moyens de les trouver, vous pouvez mieux prot\u00e9ger vos p\u00e9riph\u00e9riques et optimiser votre r\u00e9seau.<\/span><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5af7b96 elementor-widget elementor-widget-html\" data-id=\"5af7b96\" data-element_type=\"widget\" data-widget_type=\"html.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<script type=\"application\/ld+json\">\r\n{\r\n  \"@context\": \"https:\/\/schema.org\",\r\n  \"@type\": \"FAQPage\",\r\n  \"mainEntity\": [{\r\n    \"@type\": \"Question\",\r\n    \"name\": \"Qu'est-ce qu'une adresse MAC ?\",\r\n    \"acceptedAnswer\": {\r\n      \"@type\": \"Answer\",\r\n      \"text\": \"Une adresse MAC (Media Access Control) est un identifiant unique attribu\u00e9 \u00e0 une interface r\u00e9seau pour les communications sur le r\u00e9seau physique. Chaque appareil connect\u00e9 \u00e0 un r\u00e9seau poss\u00e8de une adresse MAC unique, g\u00e9n\u00e9ralement attribu\u00e9e par le fabricant de la carte r\u00e9seau. Elle est compos\u00e9e de six groupes de deux caract\u00e8res hexad\u00e9cimaux, souvent s\u00e9par\u00e9s par des deux-points ou des tirets.\"\r\n    }\r\n  },{\r\n    \"@type\": \"Question\",\r\n    \"name\": \"\u00c0 quoi sert une adresse MAC ?\",\r\n    \"acceptedAnswer\": {\r\n      \"@type\": \"Answer\",\r\n      \"text\": \"L'adresse MAC est utilis\u00e9e pour identifier de mani\u00e8re unique un appareil sur un r\u00e9seau local (LAN). Elle permet aux \u00e9quipements r\u00e9seau comme les routeurs et les commutateurs de diriger les donn\u00e9es vers le bon destinataire. Les adresses MAC sont cruciales pour le fonctionnement du protocole Ethernet et d'autres technologies r\u00e9seau, assurant la bonne communication entre les dispositifs connect\u00e9s.\"\r\n    }\r\n  },{\r\n    \"@type\": \"Question\",\r\n    \"name\": \"Quelle est la diff\u00e9rence entre une adresse MAC et une adresse IP ?\",\r\n    \"acceptedAnswer\": {\r\n      \"@type\": \"Answer\",\r\n      \"text\": \"L'adresse MAC identifie physiquement un appareil sur un r\u00e9seau local, tandis que l'adresse IP (Internet Protocol) identifie l'emplacement logique de l'appareil sur un r\u00e9seau plus large, comme l'Internet. Une adresse MAC est fixe et unique pour chaque appareil, alors qu'une adresse IP peut changer et est attribu\u00e9e par le r\u00e9seau auquel l'appareil est connect\u00e9.\"\r\n    }\r\n  },{\r\n    \"@type\": \"Question\",\r\n    \"name\": \"Comment puis-je trouver l'adresse MAC de mon appareil ?\",\r\n    \"acceptedAnswer\": {\r\n      \"@type\": \"Answer\",\r\n      \"text\": \"Pour trouver l'adresse MAC de votre appareil, vous pouvez g\u00e9n\u00e9ralement consulter les param\u00e8tres r\u00e9seau de l'appareil. Sur un ordinateur Windows, vous pouvez utiliser la commande \\\"ipconfig \/all\\\" dans l'invite de commandes. Sur un Mac, vous pouvez aller dans \\\"Pr\u00e9f\u00e9rences Syst\u00e8me\\\", puis \\\"R\u00e9seau\\\", s\u00e9lectionner l'interface r\u00e9seau et cliquer sur \\\"Avanc\u00e9\\\" pour voir l'adresse MAC. Pour les appareils mobiles, les adresses MAC se trouvent souvent dans les param\u00e8tres r\u00e9seau ou \u00e0 propos de l'appareil.\"\r\n    }\r\n  }]\r\n}\r\n<\/script>\r\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Une adresse MAC (Media Access Control) est un identifiant unique attribu\u00e9 \u00e0 chaque interface r\u00e9seau d&rsquo;un p\u00e9riph\u00e9rique. Elle est essentielle pour la communication au sein des r\u00e9seaux locaux. Elles sont inscrites dans le mat\u00e9riel r\u00e9seau lors de sa fabrication et jouent un r\u00f4le crucial dans l&rsquo;identification des appareils sur un r\u00e9seau. En plus de leur [&hellip;]<\/p>\n","protected":false},"author":75,"featured_media":243587,"comment_status":"open","ping_status":"open","sticky":false,"template":"elementor_theme","format":"standard","meta":{"content-type":"","inline_featured_image":false},"categories":[2495],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.7 (Yoast SEO v21.7) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Adresse MAC : Qu&#039;est-ce que c&#039;est ? \u00c0 quoi \u00e7a sert ?<\/title>\n<meta name=\"description\" content=\"D\u00e9couvrez ce qu&#039;est une adresse MAC, comment elle fonctionne et son importance dans les r\u00e9seaux informatiques. 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