{"id":1025,"date":"2021-07-11T11:45:12","date_gmt":"2021-07-11T14:45:12","guid":{"rendered":"http:\/\/www.tech-nico.com\/blog\/?p=1025"},"modified":"2021-07-11T11:47:05","modified_gmt":"2021-07-11T14:47:05","slug":"mikrotik-routeros-nat-masquerade-y-netmap","status":"publish","type":"post","link":"https:\/\/www.tech-nico.com\/blog\/mikrotik-routeros-nat-masquerade-y-netmap\/","title":{"rendered":"Mikrotik RouterOS NAT &#8211; Masquerade y Netmap"},"content":{"rendered":"<div id=\"advads-4274226425\" class=\"advads-antes-de-contenido advads-entity-placement\" style=\"float: left;\"><script async src=\"\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js?client=ca-pub-0513087877342686\" crossorigin=\"anonymous\"><\/script><ins class=\"adsbygoogle\" style=\"display:block; text-align:center;\" data-ad-client=\"ca-pub-0513087877342686\" \ndata-ad-slot=\"6331524197\" \ndata-ad-layout=\"in-article\"\ndata-ad-format=\"fluid\"><\/ins>\n<script> \n(adsbygoogle = window.adsbygoogle || []).push({}); \n<\/script>\n<\/div><br style=\"clear: both; display: block; float: none;\"\/>\n<p>Existen varios tipos de <a href=\"https:\/\/es.wikipedia.org\/wiki\/Traducci%C3%B3n_de_direcciones_de_red\">NAT<\/a> para diferentes prop\u00f3sitos. Todos conocemos el cl\u00e1sico \u00ab<strong>Masquerade<\/strong>\u00ab, que siempre utilizamos en los mikrotik de nuestros clientes, pero a veces trae algunos problemas extra\u00f1os en la navegaci\u00f3n que por suerte resuelve <strong>Netmap<\/strong>.<\/p><div id=\"advads-3871759201\" class=\"advads-contenido-de-la-entrada advads-entity-placement\"><script async src=\"\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js?client=ca-pub-0513087877342686\" crossorigin=\"anonymous\"><\/script><ins class=\"adsbygoogle\" style=\"display:block; text-align:center;\" data-ad-client=\"ca-pub-0513087877342686\" \ndata-ad-slot=\"6331524197\" \ndata-ad-layout=\"in-article\"\ndata-ad-format=\"fluid\"><\/ins>\n<script> \n(adsbygoogle = window.adsbygoogle || []).push({}); \n<\/script>\n<\/div>\n\n\n\n<p>Adem\u00e1s de <em>action=masquerade<\/em> tambi\u00e9n existe <em>action=netmap.<\/em> Los dos son muy similares entre si (hay una linea muy delgada entre uno y otro). <br><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Tipos de NAT a grandes rasgos<\/h2>\n\n\n\n<ul class=\"wp-block-list\"><li>Masquerade traduce desde 1 sola direcci\u00f3n publica, y permite un WAN con direcciones din\u00e1micas. (tambi\u00e9n conocida como NAT din\u00e1mica).<\/li><li>Src-nat traduce de 1 a muchos. (Nat conocido para cuando hacemos port forwarding).<\/li><li>Netmap mapea de 1 a 1 Publica:Privada. (Conocida como NAT estatica).<\/li><\/ul>\n\n\n\n<p><strong>Uno de los usos posibles NETMAP:<\/strong><\/p>\n\n\n\n<p>En mi escenario, mi proveedor superior routeaba las direcciones p\u00fablicas a trav\u00e9s de un punto a punto privado \/29. De esta manera en tu WAN vas a tener una direcci\u00f3n IP Privada, y tu GW tambi\u00e9n va a ser privado. Entonces para poder tener salida con origen publico (hacia afuera), hay que configurar el GW p\u00fablico de tus abonados en una interfaz Privada. Los ISP que hacen esto realmente piensan en no desperdiciarnos ninguna direcci\u00f3n IP p\u00fablica.<\/p>\n\n\n\n<p>NOTA: Si el origen de la salida ser\u00eda privado, muchos proveedores superiores que utilizan BGP, filtran el origen de tr\u00e1fico en rangos privados.<\/p>\n\n\n\n<p>Algunos ISP que han tenido que NATEAR en el escenario anterior (utilizando action=masquerade simplemente no funciona) lo que hacen es resolverlo agregar otro equipo Mikrotik dedicado al NATEO. Entonces de esa manera, le otorgan una direcci\u00f3n p\u00fablica al equipo que dedican exclusivamente para NAT utilizando el clasico action masquerade.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Aqu\u00ed es donde entra en acci\u00f3n NETMAP.<\/h2>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p><code>\/ip firewall nat add action=netmap chain=srcnat comment=\"CGNAT rule\" out-interface-list=WAN ipsec-policy=out,none src-address-list=nateados to-addresses=public\/32<\/code><\/p><cite>En Este ejemplo, esta habilitado ipsec passthrough para evitar problemas con servicios P2P, VPNs, Juegos (Xbox) etc.<\/cite><\/blockquote>\n\n\n\n<p>Incluso en <strong>to-addresses<\/strong> podes setear por que direcci\u00f3n IP queres que se Nateen. <\/p>\n\n\n\n<p><\/p>\n\n\n\n<p>Para el que quiera profundizar les dejo este enlace que me gust\u00f3 mucho:<\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-wp-embed is-provider-daryll-swer wp-block-embed-daryll-swer\"><div class=\"wp-block-embed__wrapper\">\n<blockquote class=\"wp-embedded-content\" data-secret=\"f9tom8BBFX\"><a href=\"https:\/\/www.daryllswer.com\/edge-router-bng-optimisation-guide-for-isps\/\">Edge Router &#038; BNG Optimisation Guide for ISPs<\/a><\/blockquote><iframe loading=\"lazy\" class=\"wp-embedded-content\" sandbox=\"allow-scripts\" security=\"restricted\" style=\"position: absolute; visibility: hidden;\" title=\"&#8220;Edge Router &#038; BNG Optimisation Guide for ISPs&#8221; &#8212; Daryll Swer\" src=\"https:\/\/www.daryllswer.com\/edge-router-bng-optimisation-guide-for-isps\/embed\/#?secret=rQyQx1gSpj#?secret=f9tom8BBFX\" data-secret=\"f9tom8BBFX\" width=\"584\" height=\"329\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\"><\/iframe>\n<\/div><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>Existen varios tipos de NAT para diferentes prop\u00f3sitos. Todos conocemos el cl\u00e1sico \u00abMasquerade\u00ab, que siempre utilizamos en los mikrotik de nuestros clientes, pero a veces trae algunos problemas extra\u00f1os en la navegaci\u00f3n que por suerte resuelve Netmap. Adem\u00e1s de action=masquerade &hellip; <a href=\"https:\/\/www.tech-nico.com\/blog\/mikrotik-routeros-nat-masquerade-y-netmap\/\">Sigue leyendo <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":3,"featured_media":1029,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[55,3],"tags":[48],"class_list":["post-1025","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-redes","category-trucos","tag-mikrotik"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Mikrotik RouterOS NAT - Masquerade y Netmap &#183; Tech-nico.com<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"http:\/\/www.tech-nico.com\/blog\/mikrotik-routeros-nat-masquerade-y-netmap\/\" \/>\n<meta property=\"og:locale\" content=\"es_ES\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Mikrotik RouterOS NAT - Masquerade y Netmap &#183; Tech-nico.com\" \/>\n<meta property=\"og:description\" content=\"Existen varios tipos de NAT para diferentes prop\u00f3sitos. 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