{"id":5596,"date":"2026-10-02T09:36:46","date_gmt":"2026-10-02T09:36:46","guid":{"rendered":"https:\/\/www.garmasl.com\/blog\/?p=5596"},"modified":"2026-10-02T09:36:47","modified_gmt":"2026-10-02T09:36:47","slug":"captura-analisis-trafico-ot","status":"publish","type":"post","link":"https:\/\/www.garmasl.com\/blog\/es\/captura-analisis-trafico-ot\/","title":{"rendered":"Captura y an\u00e1lisis de tr\u00e1fico OT: gu\u00eda pr\u00e1ctica con TAP, IOTA y Wireshark"},"content":{"rendered":"<div class=\"lineas-juntas\">\n<div class=\"linea-azul\"><\/div>\n<div class=\"linea-gris\"><\/div>\n<\/div>\n<style>\n  .lineas-juntas {\n    display: flex;\n    flex-direction: column;\n    margin: 0;\n    padding: 0;\n  }\n\n  .linea-azul {\n    background-color: #1b4489;\n    height: 8px; \/* Grosor *\/\n    width: 100%;\n    margin: 0; \/* Elimina cualquier margen *\/\n  }\n\n  .linea-gris {\n    background-color: #d1d5db;\n    height: 8px; \/* Grosor *\/\n    width: 100%;\n    margin: 0; \/* Elimina cualquier margen *\/\n  }\n<\/style>\n\n\n<p class=\"wp-block-paragraph\"><strong>La m\u00e1quina falla, el PLC no muestra un error claro y, cuando llega mantenimiento, la comunicaci\u00f3n vuelve a funcionar.<\/strong> \u00bfC\u00f3mo investigamos una incidencia que aparece y desaparece? En Garma Electr\u00f3nica proponemos empezar por una pregunta: \u00bfqu\u00e9 evidencia necesitamos recoger para comprobar nuestra hip\u00f3tesis?<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Esta gu\u00eda de <strong>captura y an\u00e1lisis de tr\u00e1fico OT<\/strong> est\u00e1 dirigida a mantenimiento, integradores y responsables IT\/OT que buscan mejorar el diagn\u00f3stico y la visibilidad de sus instalaciones. Tomamos como referencia el nuevo flujo de trabajo t\u00e9cnico de Profitap y lo trasladamos a decisiones pr\u00e1cticas de planta.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">TAP o SPAN: elegir el acceso al tr\u00e1fico<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Un puerto SPAN copia tr\u00e1fico desde el switch y puede ser \u00fatil para un diagn\u00f3stico inicial. Sin embargo, la copia puede perder paquetes por sobresuscripci\u00f3n y no representa necesariamente los tiempos originales del enlace. Un <a href=\"https:\/\/www.garmasl.com\/es\/30_profi-tap\"><strong>TAP de red<\/strong><\/a> ofrece un acceso dedicado al tr\u00e1fico en ambos sentidos. La elecci\u00f3n debe considerar tambi\u00e9n la latencia introducida y el comportamiento ante p\u00e9rdida de alimentaci\u00f3n.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Instalar un TAP en un cable existente requiere intervenir en el enlace: hay que prever una ventana de mantenimiento y validar la comunicaci\u00f3n despu\u00e9s. Observar tr\u00e1fico de forma pasiva no significa que la instalaci\u00f3n f\u00edsica pueda hacerse sin parada.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">El protocolo determina las condiciones de captura<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Profitap diferencia entre <strong>Modbus TCP, PROFINET RT, PROFINET IRT y TSN<\/strong>. En redes con requisitos temporales estrictos, como PROFINET IRT, el retardo adicional debe caber en el margen previsto por el proyecto. En TSN conviene comprobar la sincronizaci\u00f3n y la planificaci\u00f3n temporal. Por ello, recomendamos prever los puntos de monitorizaci\u00f3n durante el dise\u00f1o de la m\u00e1quina.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">IOTA y ProfiShark: dos formas de trabajar<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">IOTA para captura aut\u00f3noma y an\u00e1lisis remoto<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/www.garmasl.com\/es\/analizador-redes-industriales\/1082-iota-1g-captura-y-analisis-de-paquetes-todo-en-uno.html\"><strong>Profitap IOTA<\/strong><\/a> combina captura, almacenamiento local y paneles de an\u00e1lisis. Permite revisar tr\u00e1fico en tiempo real y conservar paquetes para investigaciones posteriores. Resulta interesante cuando el fallo tarda en repetirse o el especialista no est\u00e1 permanentemente en planta. La capacidad y el periodo de retenci\u00f3n deben dimensionarse seg\u00fan el modelo, el tr\u00e1fico y la duraci\u00f3n de la investigaci\u00f3n.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/www.garmasl.com\/es\/analizador-redes-industriales\/1082-iota-1g-captura-y-analisis-de-paquetes-todo-en-uno.html\"><img decoding=\"async\" src=\"https:\/\/www.garmasl.com\/img\/cms\/Noticias\/Profitab\/iota-with-dashboards.png\" alt=\"Profitap IOTA 1G para captura aut\u00f3noma y an\u00e1lisis de tr\u00e1fico de redes IT\/OT\"\/><\/a><figcaption class=\"wp-element-caption\">IOTA integra captura, almacenamiento y visualizaci\u00f3n del tr\u00e1fico. Consulta su ficha en Garma.<\/figcaption><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">ProfiShark para diagn\u00f3stico con un ordenador<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/www.garmasl.com\/es\/analizador-redes-industriales\/1185-profishark-tap-portatil-para-captura-trafico-redes-1g-a-10g-profitap.html\"><strong>ProfiShark<\/strong><\/a> facilita la captura port\u00e1til y el trabajo con Wireshark. En el modelo 1G, Profitap especifica timestamping por hardware con resoluci\u00f3n de 8 ns y conexi\u00f3n USB 3.0. Esa resoluci\u00f3n no debe confundirse con una garant\u00eda de exactitud absoluta de toda la medida: tambi\u00e9n importan el punto de captura, la sincronizaci\u00f3n y el m\u00e9todo de an\u00e1lisis.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/www.garmasl.com\/es\/analizador-redes-industriales\/1185-profishark-tap-portatil-para-captura-trafico-redes-1g-a-10g-profitap.html\"><img decoding=\"async\" src=\"https:\/\/www.garmasl.com\/img\/cms\/productos\/pofitap\/profishark-profitap-captura-trafico-ethernet-garma.png\" alt=\"ProfiShark de Profitap: timestamping por hardware, captura Ethernet y acceso transparente, con logos de Profitap y Garma\"\/><\/a><figcaption class=\"wp-element-caption\">Captura port\u00e1til de tr\u00e1fico Ethernet para diagn\u00f3stico con Wireshark. Consulta la familia ProfiShark.<\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">C\u00f3mo organizar una investigaci\u00f3n en planta<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">1. Registrar el s\u00edntoma antes de cambiar la configuraci\u00f3n<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Anota la hora del fallo, m\u00e1quina afectada, estado del proceso, alarmas y \u00faltimas modificaciones. Define qu\u00e9 quieres comprobar: una respuesta que llega tarde, una comunicaci\u00f3n que desaparece o un intercambio inesperado. Cambiar varios par\u00e1metros simult\u00e1neamente dificulta identificar la causa.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">2. Preparar una captura que permita comparar<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Identifica los equipos y el enlace que necesitas observar. Conserva una muestra de funcionamiento normal y otra durante la incidencia, con la misma configuraci\u00f3n de captura. Documenta cualquier filtro aplicado: un paquete excluido no podr\u00e1 recuperarse despu\u00e9s.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">3. Relacionar paquetes y eventos del proceso<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Compara la evidencia de red con las alarmas del PLC, HMI y SCADA. Si las fuentes usan relojes diferentes, registra esa limitaci\u00f3n. Una coincidencia temporal orienta la investigaci\u00f3n, pero no demuestra por s\u00ed sola la causa del fallo.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">4. Verificar la soluci\u00f3n<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Despu\u00e9s de una modificaci\u00f3n, repite la comprobaci\u00f3n en condiciones comparables. Guarda la captura y una breve conclusi\u00f3n que indique qu\u00e9 cambi\u00f3, qu\u00e9 se observ\u00f3 y qu\u00e9 queda pendiente. Este registro facilita que mantenimiento y ciberseguridad compartan un diagn\u00f3stico comprensible.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/www.garmasl.com\/es\/analizador-redes-industriales\/1082-iota-1g-captura-y-analisis-de-paquetes-todo-en-uno.html\"><img decoding=\"async\" src=\"https:\/\/www.garmasl.com\/img\/cms\/Noticias\/Profitab\/iota-dashboard-overview.png\" alt=\"Panel de Profitap IOTA para visualizar comunicaciones y tr\u00e1fico de red\"\/><\/a><figcaption class=\"wp-element-caption\">El panel de IOTA ayuda a identificar qui\u00e9n comunica con qui\u00e9n y a seleccionar periodos de inter\u00e9s para investigar.<\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">\u00bfQu\u00e9 datos necesitamos para estudiar tu aplicaci\u00f3n?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Env\u00edanos el protocolo y la velocidad del enlace, un esquema de la topolog\u00eda, los equipos afectados, la frecuencia de la incidencia y las herramientas disponibles. Indica tambi\u00e9n si necesitas captura puntual o permanente y cu\u00e1ndo puede intervenirse en la red.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">El enfoque puede aplicarse a fabricantes de maquinaria, alimentaci\u00f3n, tratamiento de aguas, energ\u00eda e instalaciones cr\u00edticas. Si existen varios puntos de captura o herramientas de seguridad, tambi\u00e9n podemos estudiar la agregaci\u00f3n y distribuci\u00f3n del tr\u00e1fico.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Soluciones Profitap en Garma Electr\u00f3nica<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Te ayudamos a valorar <strong>TAP, IOTA y ProfiShark<\/strong> seg\u00fan tu instalaci\u00f3n. Consulta nuestras <a href=\"https:\/\/www.garmasl.com\/es\/30_profi-tap\">soluciones Profitap<\/a> o ampl\u00eda informaci\u00f3n con nuestra <a href=\"https:\/\/www.garmasl.com\/blog\/es\/tap-de-fibra-optica-en-redes-ot-guia-de-instalacion-y-buenas-practicas\/\">gu\u00eda de TAP de fibra \u00f3ptica para redes OT<\/a>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u00bfQuieres investigar una incidencia o mejorar la observabilidad de tu red?<\/strong> Contacta con Garma a trav\u00e9s de <a href=\"https:\/\/www.garmasl.com\/es\/contactenos\">nuestro formulario web<\/a> o escr\u00edbenos a <a href=\"mailto:info@garmasl.com\">info@garmasl.com<\/a> y cu\u00e9ntanos tu aplicaci\u00f3n. Sigue tambi\u00e9n a <a href=\"https:\/\/es.linkedin.com\/company\/garma-electronica-s-l\">Garma Electr\u00f3nica en LinkedIn<\/a> para recibir contenidos t\u00e9cnicos sobre an\u00e1lisis de redes y comunicaciones industriales.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Fuente t\u00e9cnica: <a href=\"https:\/\/insights.profitap.com\/capturing-and-analyzing-ot-network-traffic-workflow\">Profitap: Capturing and Analyzing OT Network Traffic Workflow<\/a>. Contenido adaptado por Garma Electr\u00f3nica con recomendaciones para preparar y documentar el diagn\u00f3stico en planta.<\/p>\n\n\n\n<div class=\"wp-block-group has-ast-global-color-6-background-color has-background is-layout-constrained wp-block-group-is-layout-constrained\" style=\"padding-top:var(--wp--preset--spacing--40);padding-bottom:var(--wp--preset--spacing--40)\">\n<p class=\"has-text-align-center wp-block-paragraph\">Para m\u00e1s informaci\u00f3n.<\/p>\n\n\n\n<div class=\"wp-block-buttons is-content-justification-center is-layout-flex wp-container-core-buttons-is-layout-3e41869c wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/www.garmasl.com\/es\/contactenos\">Cont\u00e1ctanos<\/a><\/div>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>C\u00f3mo preparar la captura y el an\u00e1lisis de tr\u00e1fico OT con TAP, IOTA y ProfiShark: criterios de selecci\u00f3n y diagn\u00f3stico de fallos intermitentes en redes industriales.<\/p>\n","protected":false},"author":3,"featured_media":5589,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[1],"tags":[56,54,53,55],"class_list":["post-5596","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-noticias","tag-analisis-de-redes","tag-profitap","tag-redes-ot","tag-tap"],"veo_fimg_url":"https:\/\/www.garmasl.com\/blog\/wp-content\/uploads\/2026\/09\/TAP-OT1-1024x583.webp","yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v23.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>An\u00e1lisis de tr\u00e1fico OT con TAP e IOTA | Garma<\/title>\n<meta name=\"description\" content=\"Gu\u00eda de captura y an\u00e1lisis de tr\u00e1fico OT con TAP, IOTA y ProfiShark. 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