{"id":47,"date":"2007-07-03T15:12:20","date_gmt":"2007-07-03T13:12:20","guid":{"rendered":"http:\/\/michauko.org\/blog\/2007\/07\/03\/wake-on-lan-et-freebox\/"},"modified":"2009-10-08T15:30:43","modified_gmt":"2009-10-08T13:30:43","slug":"wake-on-lan-et-freebox","status":"publish","type":"post","link":"https:\/\/michauko.org\/blog\/wake-on-lan-et-freebox-47\/","title":{"rendered":"Wake-On-LAN (et Freebox)"},"content":{"rendered":"

R\u00e9cemment, j’en ai eu marre d’allumer mon PC (oui je l’\u00e9teins parfois) le matin avant de partir au boulot pour les quelques fois o\u00f9 j’ai besoin d’y acc\u00e9der en journ\u00e9e. Donc j’ai mis en place le WOL<\/a>.<\/p>\n

Le principe est de pouvoir allumer son PC \u00e0 distance, du moment qu’il est encore sous tension (ainsi que tous les \u00e9l\u00e9ments \u00e9lectriques\/r\u00e9seau menant \u00e0 lui) et que la carte r\u00e9seau le permette (toutes les cartes r\u00e9centes le font). Il faut s’assurer aussi dans le BIOS de votre machine que le WOL est activ\u00e9, ce qui n’est probablement pas le cas par d\u00e9faut.<\/p>\n

A la base, \u00e7a sert dans la gestion des parcs de machines sur un r\u00e9seau local. Par extension, \u00e7a permet de r\u00e9veiller n’importe quelle machine, m\u00eame sur Internet. On parle quelques fois de Wake-On-WAN. Il suffit de connaitre l’adresse MAC de la carte r\u00e9seau et de pouvoir l’adresser (la joindre par le r\u00e9seau).<\/p>\n

Le \u00ab\u00a0programme de Wake-On-LAN\u00a0\u00bb envoie simplement une trame r\u00e9seau particuli\u00e8re en mode UDP sur le port 9. Cette trame peut s’accompagner d’un mot de passe encod\u00e9, si la carte le permet, l\u00e0 encore.<\/p>\n

Le cas que je d\u00e9cris est le suivant : une machine sur un LAN derri\u00e8re un modem\/firewall\/routeur (ici une Freebox<\/a>). La machine n’est donc pas visible directement depuis Internet, c’est la Freebox qui l’est. Donc il faut mettre en place le \u00ab\u00a0proxy WOL\u00a0\u00bb de la Freebox, dans la console d’administration Free :
\nFreebox & Proxy WOL<\/a>
\nCe proxy va faire en sorte que les requ\u00eates type UDP\/9 arrivant \u00e0 l’entr\u00e9e de la freebox puissent traverser et \u00eatre r\u00e9\u00e9mises \u00e0 tout le r\u00e9seau local derri\u00e8re ; l’adresse MAC garantissant l’unicit\u00e9 de la machine dans le LAN.<\/p>\n

Donc, une fois le BIOS OK, votre modem\/routeur OK, reste \u00e0 envoyer la trame magique.<\/p>\n

Sous Debian, au moins deux applications existent : etherwake et wakeonlan. La premi\u00e8re permet de mettre des mots de passes mais pas d’envoyer la trame sur Internet ; la deuxi\u00e8me, c’est l’inverse (\u00e9videmment \ud83d\ude42<\/p>\n

Sous Windows, j’ai trouv\u00e9 un WakeOnLANGUI<\/a> gratuit. Mais ce dernier ne sait pas g\u00e9rer les proxys (si par hasard vous \u00eates au boulot) ; c’est un probl\u00e8me qui se pose moins (me concernant) depuis une machine Linux.<\/p>\n

Exemple avec \u00ab\u00a0wakeonlan\u00a0\u00bb sous Debian :<\/p>\n

apt-get install wakeonlan<\/pre>\n
Puis :<\/p>\n
wakeonlan -i 82.x.y.z 00:12:34:56:78:90<\/pre>\n
(Si vous ne connaissez pas votre adresse MAC : ipconfig \/ALL<\/code> sous Windows dans une fen\u00eatre DOS, et \/sbin\/ifconfig<\/code> sous Linux).<\/p>\n
D’un point de vue s\u00e9curit\u00e9, le risque que quelqu’un connaisse votre adresse MAC sur un r\u00e9seau non visible (LAN derri\u00e8re votre routeur) est faible. Vous pouvez de plus ajouter un mot de passe et au pire, vous risquez simplement un allumage intempestif.<\/p>\n","protected":false},"excerpt":{"rendered":"
R\u00e9cemment, j’en ai eu marre d’allumer mon PC (oui je l’\u00e9teins parfois) le matin avant de partir au boulot pour les quelques fois o\u00f9 j’ai besoin d’y acc\u00e9der en journ\u00e9e. Donc j’ai mis en place …<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_crdt_document":"","_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[2,389,4],"tags":[25,26,24,5,31,29,30,27,23,22,28],"class_list":["post-47","post","type-post","status-publish","format-standard","hentry","category-debian","category-reseau-secu","category-windows","tag-free","tag-freebox","tag-lan","tag-linux","tag-mac","tag-magic","tag-packet","tag-proxy","tag-wake","tag-wake-on-lan","tag-wol"],"yoast_head":"\nWake-On-LAN (et Freebox) - Le blog de Michauko<\/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:\/\/michauko.org\/blog\/wake-on-lan-et-freebox-47\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Wake-On-LAN (et Freebox) - Le blog de Michauko\" \/>\n<meta property=\"og:description\" content=\"R\u00e9cemment, j’en ai eu marre d’allumer mon PC (oui je l’\u00e9teins parfois) le matin avant de partir au boulot pour les quelques fois o\u00f9 j’ai besoin d’y acc\u00e9der en journ\u00e9e. 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