{"id":883,"date":"2019-02-09T21:48:00","date_gmt":"2019-02-09T20:48:00","guid":{"rendered":"https:\/\/lab.fawno.com\/?p=883"},"modified":"2022-03-07T16:34:02","modified_gmt":"2022-03-07T15:34:02","slug":"","status":"publish","type":"post","link":"https:\/\/lab.fawno.com\/en\/2019\/02\/09\/dd-wrt-aislamiento-de-los-puertos-del-switch\/","title":{"rendered":"","raw":""},"content":{"rendered":"","protected":false,"raw":""},"excerpt":{"rendered":"","protected":false,"raw":""},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_coblocks_attr":"","_coblocks_dimensions":"","_coblocks_responsive_height":"","_coblocks_accordion_ie_support":"","_editorskit_title_hidden":false,"_editorskit_reading_time":0,"_editorskit_typography_data":[],"_editorskit_blocks_typography":"","_editorskit_is_block_options_detached":false,"_editorskit_block_options_position":"{}","_es_post_content":"<!-- wp:paragraph -->\n<p>Hace tiempo os <a rel=\"noreferrer noopener\" aria-label=\"contaba que tengo un router gen\u00e9rico con DD-WRT (opens in a new tab)\" href=\"https:\/\/lab.fawno.com\/2017\/08\/19\/configuracion-dd-wrt-con-fibra-de-orange\/\" target=\"_blank\">contaba que tengo un router gen\u00e9rico con DD-WRT<\/a> como <a rel=\"noreferrer noopener\" aria-label=\"gateway (opens in a new tab)\" href=\"https:\/\/es.wikipedia.org\/wiki\/Puerta_de_enlace\" target=\"_blank\">gateway<\/a> en casa.<\/p>\n<!-- \/wp:paragraph -->\n\n<!-- wp:paragraph -->\n<p>Resulta que ven\u00eda padeciendo un problema: los puertos del switch del router est\u00e1n aislados. Esto es, cada una de las \"bocas\" del router gen\u00e9rico funciona perfectamente con respecto a que te da acceso a internet. Pero no permite comunicaci\u00f3n entre ellas, un ordenador no tiene ni idea de que hay otros aparatos conectados en la misma red.<\/p>\n<!-- \/wp:paragraph -->\n\n<!-- wp:paragraph -->\n<p>Lo curioso del caso es que el aislamiento s\u00f3lo ocurre con los puertos f\u00edsicos, con la red inal\u00e1mbrica si que hay conectividad.<\/p>\n<!-- \/wp:paragraph -->\n\n<!-- wp:paragraph -->\n<p>Este problema es un bug\/feature del DD-WRT, y ha aparecido\/desaparecido en los \u00faltimos dos\/tres a\u00f1os de manera recurrente.<\/p>\n<!-- \/wp:paragraph -->\n\n<!-- wp:paragraph -->\n<p>Lo primero que tenemos que entender es que dicho aislamiento puede ser deseado, quiz\u00e1s queremos que una red quede dividida en dos o m\u00e1s segmentos aislados entre si. Para eso existen las vlan. Y de hecho hasta hace alg\u00fan tiempo la soluci\u00f3n pasaba por a\u00f1adir los siguientes comandos en la secuencia de inicio del router:<\/p>\n<!-- \/wp:paragraph -->\n\n<!-- wp:enlighter\/codeblock {\"language\":\"shell\",\"theme\":\"dracula\"} -->\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"shell\" data-enlighter-theme=\"dracula\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">swconfig dev switch0 set enable_vlan 1\nswconfig dev switch0 set apply<\/pre>\n<!-- \/wp:enlighter\/codeblock -->\n\n<!-- wp:paragraph -->\n<p>Pero como os cuento: <strong>hasta hace alg\u00fan tiempo<\/strong>. O lo que es lo mismo: desde hace tiempo esa soluci\u00f3n no funciona. Es m\u00e1s, dicho comando hac\u00eda que dejara de funcionar el switch del router.<\/p>\n<!-- \/wp:paragraph -->\n\n<!-- wp:paragraph -->\n<p>Ayer, buscando por en\u00e9sima vez sobre el tema descubr\u00ed la pieza que faltaba:<\/p>\n<!-- \/wp:paragraph -->\n\n<!-- wp:enlighter\/codeblock {\"language\":\"shell\",\"theme\":\"dracula\"} -->\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"shell\" data-enlighter-theme=\"dracula\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">swconfig dev switch0 set reset\nswconfig dev switch0 set enable_vlan 1\nswconfig dev switch0 set apply<\/pre>\n<!-- \/wp:enlighter\/codeblock -->\n\n<!-- wp:paragraph -->\n<p>A\u00f1adir un reset al switch es lo que faltaba. De hecho en el c\u00f3digo fuente est\u00e1n esas mismas l\u00edneas pero para la interfaz eth1.<\/p>\n<!-- \/wp:paragraph -->","_es_post_name":"dd-wrt-aislamiento-de-los-puertos-del-switch","_es_post_excerpt":"","_es_post_title":"DD-WRT: Aislamiento de los puertos del switch","_en_post_content":"","_en_post_name":"","_en_post_excerpt":"","_en_post_title":"","edit_language":"en","footnotes":""},"categories":[14],"tags":[82,83],"class_list":["post-883","post","type-post","status-publish","format-standard","hentry","category-batallitas","tag-dd-wrt","tag-port-isolated"],"ninja_gutenberg_blocks_featured_media_urls":{"thumbnail":"","ninja_gutenberg_blocks_landscape_large":"","ninja_gutenberg_blocks_portrait_large":"","ninja_gutenberg_blocks_square_large":"","ninja_gutenberg_blocks_landscape":"","ninja_gutenberg_blocks_portrait":"","ninja_gutenberg_blocks_square":"","full":""},"_links":{"self":[{"href":"https:\/\/lab.fawno.com\/en\/wp-json\/wp\/v2\/posts\/883","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lab.fawno.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lab.fawno.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lab.fawno.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/lab.fawno.com\/en\/wp-json\/wp\/v2\/comments?post=883"}],"version-history":[{"count":8,"href":"https:\/\/lab.fawno.com\/en\/wp-json\/wp\/v2\/posts\/883\/revisions"}],"predecessor-version":[{"id":1886,"href":"https:\/\/lab.fawno.com\/en\/wp-json\/wp\/v2\/posts\/883\/revisions\/1886"}],"wp:attachment":[{"href":"https:\/\/lab.fawno.com\/en\/wp-json\/wp\/v2\/media?parent=883"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lab.fawno.com\/en\/wp-json\/wp\/v2\/categories?post=883"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lab.fawno.com\/en\/wp-json\/wp\/v2\/tags?post=883"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}