{"id":7792,"date":"2025-05-27T20:54:23","date_gmt":"2025-05-27T18:54:23","guid":{"rendered":"https:\/\/draytek.fr\/ressources\/?post_type=dt_articles&#038;p=7792"},"modified":"2025-05-27T21:01:45","modified_gmt":"2025-05-27T19:01:45","slug":"comment-configurer-les-regles-nat-pour-les-connexions-vpn","status":"publish","type":"dt_articles","link":"https:\/\/draytek.fr\/ressources\/dt_articles\/comment-configurer-les-regles-nat-pour-les-connexions-vpn\/","title":{"rendered":"Comment configurer les r\u00e8gles NAT pour les connexions VPN"},"content":{"rendered":"<p>Les routeurs DrayTek offrent des fonctionnalit\u00e9s avanc\u00e9es de NAT (Network Address Translation) et de VPN (Virtual Private Network). Ce guide explique comment configurer correctement les r\u00e8gles NAT pour garantir le bon fonctionnement de vos connexions VPN.<\/p>\n<h4><strong>1. Comprendre l&#8217;interaction entre NAT et VPN<\/strong><\/h4>\n<p class=\"ds-markdown-paragraph\">Le NAT modifie les adresses IP dans les en-t\u00eates des paquets r\u00e9seau, ce qui peut interf\u00e9rer avec les connexions VPN si elles ne sont pas configur\u00e9es correctement.<br \/>\nLes VPN (comme IPSec, PPTP ou L2TP) n\u00e9cessitent souvent une configuration NAT sp\u00e9cifique pour \u00e9viter les probl\u00e8mes de connectivit\u00e9.<\/p>\n<h4><strong>2. Configurer les r\u00e8gles NAT pour les VPN<\/strong><\/h4>\n<h5><strong>\u00c9tape 1 : Acc\u00e9der \u00e0 l&#8217;interface de gestion du routeur<\/strong><\/h5>\n<ul>\n<li>Connectez-vous \u00e0 l&#8217;interface web de votre routeur DrayTek (g\u00e9n\u00e9ralement via <code>https:\/\/192.168.1.1<\/code>).<\/li>\n<li>Allez dans <strong>R\u00e9seau &gt; NAT<\/strong>.<\/li>\n<\/ul>\n<h5><strong>\u00c9tape 2 : Ajouter une r\u00e8gle NAT pour le VPN<\/strong><\/h5>\n<ol start=\"1\">\n<li>\n<p class=\"ds-markdown-paragraph\">Cliquez sur <strong>Ajouter<\/strong> pour cr\u00e9er une nouvelle r\u00e8gle.<\/p>\n<\/li>\n<li>\n<p class=\"ds-markdown-paragraph\">S\u00e9lectionnez <strong>Mode<\/strong> :<\/p>\n<p><em>Bypass<\/em> (pour contourner le NAT)<\/p>\n<ul>\n<li>\n<p class=\"ds-markdown-paragraph\"><em>Port Forwarding<\/em> (si n\u00e9cessaire)<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li>\n<p class=\"ds-markdown-paragraph\">Dans <strong>Protocole<\/strong>, choisissez le type de VPN (par ex. <em>IPSec<\/em>, <em>PPTP<\/em>).<\/p>\n<\/li>\n<li>\n<p class=\"ds-markdown-paragraph\">Sp\u00e9cifiez l&#8217;<strong>IP locale<\/strong> du serveur VPN.<\/p>\n<\/li>\n<li>\n<p class=\"ds-markdown-paragraph\">Sauvegardez la configuration.<\/p>\n<\/li>\n<\/ol>\n<h5><strong>\u00c9tape 3 : Appliquer les param\u00e8tres<\/strong><\/h5>\n<ul>\n<li>\n<p class=\"ds-markdown-paragraph\">Red\u00e9marrez le routeur si n\u00e9cessaire.<\/p>\n<\/li>\n<li>\n<p class=\"ds-markdown-paragraph\">Testez la connexion VPN pour v\u00e9rifier qu&#8217;elle fonctionne correctement.<\/p>\n<\/li>\n<\/ul>\n<h4><strong>3. D\u00e9pannage des probl\u00e8mes courants<\/strong><\/h4>\n<ul>\n<li>\n<p class=\"ds-markdown-paragraph\"><strong>Probl\u00e8me<\/strong> : La connexion VPN \u00e9choue apr\u00e8s la configuration NAT.<br \/>\n<strong>Solution<\/strong> : V\u00e9rifiez que la r\u00e8gle NAT ne bloque pas les ports n\u00e9cessaires (par ex. UDP 500 pour IPSec).<\/p>\n<\/li>\n<li>\n<p class=\"ds-markdown-paragraph\"><strong>Probl\u00e8me<\/strong> : Ralentissement du trafic VPN.<br \/>\n<strong>Solution<\/strong> : Activez <strong>Hardware Acceleration<\/strong> dans les param\u00e8tres NAT.<\/p>\n<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Quisque dapibus felis ultrices, posuere eros eget, lacinia nunc. Duis id nulla eu nisi elementum venenatis. Duis ipsum ante, rhoncus non risus sed, ornare ultrices risus.<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","template":"","article_entries":[7],"article_tags":[170,169,131],"class_list":["post-7792","dt_articles","type-dt_articles","status-publish","hentry","article_entries-vpn","article_tags-drayos","article_tags-nat","article_tags-vpn"],"_links":{"self":[{"href":"https:\/\/draytek.fr\/ressources\/wp-json\/wp\/v2\/dt_articles\/7792","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/draytek.fr\/ressources\/wp-json\/wp\/v2\/dt_articles"}],"about":[{"href":"https:\/\/draytek.fr\/ressources\/wp-json\/wp\/v2\/types\/dt_articles"}],"author":[{"embeddable":true,"href":"https:\/\/draytek.fr\/ressources\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/draytek.fr\/ressources\/wp-json\/wp\/v2\/comments?post=7792"}],"version-history":[{"count":4,"href":"https:\/\/draytek.fr\/ressources\/wp-json\/wp\/v2\/dt_articles\/7792\/revisions"}],"predecessor-version":[{"id":7796,"href":"https:\/\/draytek.fr\/ressources\/wp-json\/wp\/v2\/dt_articles\/7792\/revisions\/7796"}],"wp:attachment":[{"href":"https:\/\/draytek.fr\/ressources\/wp-json\/wp\/v2\/media?parent=7792"}],"wp:term":[{"taxonomy":"article_entries","embeddable":true,"href":"https:\/\/draytek.fr\/ressources\/wp-json\/wp\/v2\/article_entries?post=7792"},{"taxonomy":"article_tags","embeddable":true,"href":"https:\/\/draytek.fr\/ressources\/wp-json\/wp\/v2\/article_tags?post=7792"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}