{"id":2954,"date":"2026-10-20T13:11:59","date_gmt":"2026-10-20T12:11:59","guid":{"rendered":"https:\/\/wpcalc.com\/pt\/ferramentas-web\/calculadora-sub-rede\/"},"modified":"2026-10-20T13:11:59","modified_gmt":"2026-10-20T12:11:59","slug":"calculadora-sub-rede","status":"publish","type":"post","link":"https:\/\/wpcalc.com\/pt\/ferramentas-web\/calculadora-sub-rede\/","title":{"rendered":"Calculadora de sub-rede IP"},"content":{"rendered":"<section class=\"not-prose calculator-box\" aria-labelledby=\"calculator-title\"><div class=\"flex items-baseline sm:items-center justify-between gap-2 sm:gap-3\"><div class=\"flex flex-col sm:flex-row sm:items-center gap-2\"><span class=\"icon icon-calculator text-primary-700! text-base! dark:text-primary-300!\" aria-hidden=\"true\"><\/span><h2 id=\"calculator-title\" class=\"text-lg font-display font-bold\">C\u00e1lculo dos endere\u00e7os de rede e host IPv4<\/h2><\/div><div class=\"calcdash-favorite group\">\n  <button type=\"button\" class=\"favorite\" id=\"favorite\" data-favorite-id=\"2954\" data-favorite-title=\"Sub-rede\" data-favorite-url=\"https:\/\/wpcalc.com\/pt\/ferramentas-web\/calculadora-sub-rede\/\" data-favorite-excerpt=\"Descubra o endere\u00e7o de rede, o endere\u00e7o de broadcast, a faixa de hosts e a quantidade de endere\u00e7os de uma rede IPv4. Digite um endere\u00e7o IP e escolha o comprimento do prefixo ou a m\u00e1scara de sub-rede; voc\u00ea tamb\u00e9m pode dividir a sub-rede.\" aria-label=\"Adicionar aos favoritos\" data-favorite-icon=\"icon icon-window-code\">\n    <span class=\"icon icon-shape-star-empty\" aria-hidden=\"true\"><\/span>\n  <\/button>\n  <div class=\"calcdash-favorite__tip\" aria-hidden=\"true\">\n   <span class=\"favorite-tooltip\" id=\"favorite-tooltip\"><\/span>\n  <\/div>\n  <span class=\"sr-only\" role=\"status\" id=\"favorite-status\"><\/span>\n<\/div><\/div><form action=\"https:\/\/wpcalc.com\/pt\/ferramentas-web\/calculadora-sub-rede\/\" method=\"POST\" class=\"calculator\" id=\"calculator-2954\" data-post=\"2954\"><fieldset class=\"fieldset-input is-2\"><legend class=\"sr-only\">Campos de entrada<\/legend><div class=\"field is-single\" id=\"input-1\"><label for=\"field-1\">Endere\u00e7o IP<\/label><input type=\"text\" name=\"endereo_ip\" id=\"field-1\" aria-describedby=\"calc-info-1\" placeholder=\"192.168.1.10 ou 192.168.1.10\/24\" step=\"any\" value=\"192.168.1.10\"\/><small id=\"calc-info-1\">Um \/prefixo opcional informado neste campo tem prioridade sobre o prefixo ou a m\u00e1scara de sub-rede escolhidos abaixo.<\/small><\/div><div class=\"field\" id=\"input-2\"><label for=\"field-2\">Formato da sub-rede<\/label><div class=\"grid grid-cols-1\"><select id=\"field-2\" name=\"formato_da_subrede\"><option value=\"prefix\" selected>Comprimento do prefixo<\/option><option value=\"mask\">M\u00e1scara de sub-rede em nota\u00e7\u00e3o decimal<\/option><\/select><svg class=\"pointer-events-none col-start-1 row-start-1 mr-2 size-5 self-center justify-self-end text-gray-500 sm:size-4\" viewBox=\"0 0 16 16\" fill=\"currentColor\" aria-hidden=\"true\" data-slot=\"icon\">\n              <path fill-rule=\"evenodd\" d=\"M4.22 6.22a.75.75 0 0 1 1.06 0L8 8.94l2.72-2.72a.75.75 0 1 1 1.06 1.06l-3.25 3.25a.75.75 0 0 1-1.06 0L4.22 7.28a.75.75 0 0 1 0-1.06Z\" clip-rule=\"evenodd\" \/>\n            <\/svg><\/div><\/div><div class=\"field\" id=\"input-3\"><label for=\"field-3\">Comprimento do prefixo<\/label><div class=\"grid grid-cols-1\"><select id=\"field-3\" name=\"comprimento_do_prefixo\"><option value=\"\/0\">\/0<\/option><option value=\"\/1\">\/1<\/option><option value=\"\/2\">\/2<\/option><option value=\"\/3\">\/3<\/option><option value=\"\/4\">\/4<\/option><option value=\"\/5\">\/5<\/option><option value=\"\/6\">\/6<\/option><option value=\"\/7\">\/7<\/option><option value=\"\/8\">\/8<\/option><option value=\"\/9\">\/9<\/option><option value=\"\/10\">\/10<\/option><option value=\"\/11\">\/11<\/option><option value=\"\/12\">\/12<\/option><option value=\"\/13\">\/13<\/option><option value=\"\/14\">\/14<\/option><option value=\"\/15\">\/15<\/option><option value=\"\/16\">\/16<\/option><option value=\"\/17\">\/17<\/option><option value=\"\/18\">\/18<\/option><option value=\"\/19\">\/19<\/option><option value=\"\/20\">\/20<\/option><option value=\"\/21\">\/21<\/option><option value=\"\/22\">\/22<\/option><option value=\"\/23\">\/23<\/option><option value=\"\/24\">\/24<\/option><option value=\"\/25\">\/25<\/option><option value=\"\/26\">\/26<\/option><option value=\"\/27\">\/27<\/option><option value=\"\/28\">\/28<\/option><option value=\"\/29\">\/29<\/option><option value=\"\/30\">\/30<\/option><option value=\"\/31\">\/31<\/option><option value=\"\/32\">\/32<\/option><\/select><svg class=\"pointer-events-none col-start-1 row-start-1 mr-2 size-5 self-center justify-self-end text-gray-500 sm:size-4\" viewBox=\"0 0 16 16\" fill=\"currentColor\" aria-hidden=\"true\" data-slot=\"icon\">\n              <path fill-rule=\"evenodd\" d=\"M4.22 6.22a.75.75 0 0 1 1.06 0L8 8.94l2.72-2.72a.75.75 0 1 1 1.06 1.06l-3.25 3.25a.75.75 0 0 1-1.06 0L4.22 7.28a.75.75 0 0 1 0-1.06Z\" clip-rule=\"evenodd\" \/>\n            <\/svg><\/div><\/div><div class=\"field\" id=\"input-4\" hidden><label for=\"field-4\">M\u00e1scara de sub-rede<\/label><input type=\"text\" name=\"mscara_de_subrede\" id=\"field-4\" aria-describedby=\"calc-info-4\" placeholder=\"255.255.255.0\" step=\"any\" value=\"255.255.255.0\"\/><small id=\"calc-info-4\">Somente m\u00e1scaras de sub-rede cont\u00edguas s\u00e3o v\u00e1lidas.<\/small><\/div><div class=\"field is-single\" id=\"input-5\"><label for=\"field-5\">Divis\u00e3o da sub-rede<\/label><div class=\"grid grid-cols-1\"><select id=\"field-5\" name=\"diviso_da_subrede\"><option value=\"none\" selected>N\u00e3o dividir<\/option><option value=\"count\">Em N sub-redes iguais<\/option><option value=\"prefix\">Pelo novo comprimento do prefixo<\/option><\/select><svg class=\"pointer-events-none col-start-1 row-start-1 mr-2 size-5 self-center justify-self-end text-gray-500 sm:size-4\" viewBox=\"0 0 16 16\" fill=\"currentColor\" aria-hidden=\"true\" data-slot=\"icon\">\n              <path fill-rule=\"evenodd\" d=\"M4.22 6.22a.75.75 0 0 1 1.06 0L8 8.94l2.72-2.72a.75.75 0 1 1 1.06 1.06l-3.25 3.25a.75.75 0 0 1-1.06 0L4.22 7.28a.75.75 0 0 1 0-1.06Z\" clip-rule=\"evenodd\" \/>\n            <\/svg><\/div><\/div><div class=\"field\" id=\"input-6\" hidden><label for=\"field-6\">N\u00famero de sub-redes (N)<\/label><input type=\"text\" name=\"nmero_de_subredes_n\" id=\"field-6\" aria-describedby=\"calc-info-6\" data-number inputmode=\"decimal\" autocomplete=\"off\" spellcheck=\"false\" min=\"2\" max=\"256\" value=\"4\"\/><small id=\"calc-info-6\">Informe uma pot\u00eancia de 2 entre 2 e 256.<\/small><\/div><div class=\"field\" id=\"input-7\" hidden><label for=\"field-7\">Novo comprimento do prefixo<\/label><div class=\"grid grid-cols-1\"><select id=\"field-7\" name=\"novo_comprimento_do_prefixo\"><option value=\"1\">\/1<\/option><option value=\"2\">\/2<\/option><option value=\"3\">\/3<\/option><option value=\"4\">\/4<\/option><option value=\"5\">\/5<\/option><option value=\"6\">\/6<\/option><option value=\"7\">\/7<\/option><option value=\"8\">\/8<\/option><option value=\"9\">\/9<\/option><option value=\"10\">\/10<\/option><option value=\"11\">\/11<\/option><option value=\"12\">\/12<\/option><option value=\"13\">\/13<\/option><option value=\"14\">\/14<\/option><option value=\"15\">\/15<\/option><option value=\"16\">\/16<\/option><option value=\"17\">\/17<\/option><option value=\"18\">\/18<\/option><option value=\"19\">\/19<\/option><option value=\"20\">\/20<\/option><option value=\"21\">\/21<\/option><option value=\"22\">\/22<\/option><option value=\"23\">\/23<\/option><option value=\"24\">\/24<\/option><option value=\"25\">\/25<\/option><option value=\"26\" selected>\/26<\/option><option value=\"27\">\/27<\/option><option value=\"28\">\/28<\/option><option value=\"29\">\/29<\/option><option value=\"30\">\/30<\/option><option value=\"31\">\/31<\/option><option value=\"32\">\/32<\/option><\/select><svg class=\"pointer-events-none col-start-1 row-start-1 mr-2 size-5 self-center justify-self-end text-gray-500 sm:size-4\" viewBox=\"0 0 16 16\" fill=\"currentColor\" aria-hidden=\"true\" data-slot=\"icon\">\n              <path fill-rule=\"evenodd\" d=\"M4.22 6.22a.75.75 0 0 1 1.06 0L8 8.94l2.72-2.72a.75.75 0 1 1 1.06 1.06l-3.25 3.25a.75.75 0 0 1-1.06 0L4.22 7.28a.75.75 0 0 1 0-1.06Z\" clip-rule=\"evenodd\" \/>\n            <\/svg><\/div><\/div><\/fieldset><div class=\"buttons\"><button type=\"submit\" data-text=\"Recalcular\" id=\"calculate-button\" data-post=\"2954\">Calcular<\/button><button type=\"reset\">Redefinir<\/button><\/div><div class=\"field is-checkbox hidden!\" id=\"field-auto-calc\"><input type=\"checkbox\" id=\"auto-calc\"><label for=\"auto-calc\">Calcular automaticamente<\/label><small>Se ativado, o resultado \u00e9 atualizado automaticamente quando voc\u00ea altera qualquer valor.<\/small><\/div><div class=\"fieldset-result is-hidden\" aria-labelledby=\"result-title\" aria-live=\"polite\" role=\"region\"> <h3 class=\"result-title bg-gradient-to-r from-primary-50 to-gray-50 dark:from-primary-900 dark:to-gray-800\" id=\"result-title\"><span class=\"icon icon-s-pulse\" aria-hidden=\"true\"><\/span> Detalhes da sub-rede<\/h3><div class=\"result-box\"><div class=\"field-result\" id=\"output-1\"><span class=\"field-title\"><span>Endere\u00e7o de rede<\/span><\/span><span class=\"field-value\" id=\"result-1\"><\/span><button type=\"button\" class=\"copy-result\" data-tooltip=\"Copiar resultado\" aria-label=\"Copiar resultado\"><span class=\"copy-icon icon icon-document-copy\" aria-hidden=\"true\"><\/span><\/button><\/div><div class=\"field-result\" id=\"output-2\"><span class=\"field-title\"><span>Endere\u00e7o de broadcast<\/span><\/span><span class=\"field-value\" id=\"result-2\"><\/span><button type=\"button\" class=\"copy-result\" data-tooltip=\"Copiar resultado\" aria-label=\"Copiar resultado\"><span class=\"copy-icon icon icon-document-copy\" aria-hidden=\"true\"><\/span><\/button><\/div><div class=\"field-result\" id=\"output-3\"><span class=\"field-title\"><span>M\u00e1scara de sub-rede<\/span><\/span><span class=\"field-value\" id=\"result-3\"><\/span><button type=\"button\" class=\"copy-result\" data-tooltip=\"Copiar resultado\" aria-label=\"Copiar resultado\"><span class=\"copy-icon icon icon-document-copy\" aria-hidden=\"true\"><\/span><\/button><\/div><div class=\"field-result\" id=\"output-4\"><span class=\"field-title\"><span>M\u00e1scara curinga<\/span><\/span><span class=\"field-value\" id=\"result-4\"><\/span><button type=\"button\" class=\"copy-result\" data-tooltip=\"Copiar resultado\" aria-label=\"Copiar resultado\"><span class=\"copy-icon icon icon-document-copy\" aria-hidden=\"true\"><\/span><\/button><\/div><div class=\"field-result\" id=\"output-5\"><span class=\"field-title\"><span>Nota\u00e7\u00e3o CIDR<\/span><\/span><span class=\"field-value\" id=\"result-5\"><\/span><button type=\"button\" class=\"copy-result\" data-tooltip=\"Copiar resultado\" aria-label=\"Copiar resultado\"><span class=\"copy-icon icon icon-document-copy\" aria-hidden=\"true\"><\/span><\/button><\/div><div class=\"field-result\" id=\"output-6\"><span class=\"field-title\"><span>Primeiro host utiliz\u00e1vel<\/span><\/span><span class=\"field-value\" id=\"result-6\"><\/span><button type=\"button\" class=\"copy-result\" data-tooltip=\"Copiar resultado\" aria-label=\"Copiar resultado\"><span class=\"copy-icon icon icon-document-copy\" aria-hidden=\"true\"><\/span><\/button><\/div><div class=\"field-result\" id=\"output-7\"><span class=\"field-title\"><span>\u00daltimo host utiliz\u00e1vel<\/span><\/span><span class=\"field-value\" id=\"result-7\"><\/span><button type=\"button\" class=\"copy-result\" data-tooltip=\"Copiar resultado\" aria-label=\"Copiar resultado\"><span class=\"copy-icon icon icon-document-copy\" aria-hidden=\"true\"><\/span><\/button><\/div><div class=\"field-result\" id=\"output-8\"><span class=\"field-title\"><span>Total de endere\u00e7os<\/span><\/span><span class=\"field-value\" id=\"result-8\"><\/span><button type=\"button\" class=\"copy-result\" data-tooltip=\"Copiar resultado\" aria-label=\"Copiar resultado\"><span class=\"copy-icon icon icon-document-copy\" aria-hidden=\"true\"><\/span><\/button><\/div><div class=\"field-result\" id=\"output-9\"><span class=\"field-title\"><span>Hosts utiliz\u00e1veis<\/span><\/span><span class=\"field-value\" id=\"result-9\"><\/span><button type=\"button\" class=\"copy-result\" data-tooltip=\"Copiar resultado\" aria-label=\"Copiar resultado\"><span class=\"copy-icon icon icon-document-copy\" aria-hidden=\"true\"><\/span><\/button><\/div><div class=\"field-result\" id=\"output-10\"><span class=\"field-title\"><span>Classe do IP<\/span><\/span><span class=\"field-value\" id=\"result-10\"><\/span><button type=\"button\" class=\"copy-result\" data-tooltip=\"Copiar resultado\" aria-label=\"Copiar resultado\"><span class=\"copy-icon icon icon-document-copy\" aria-hidden=\"true\"><\/span><\/button><\/div><div class=\"field-result\" id=\"output-11\"><span class=\"field-title\"><span>Tipo de endere\u00e7o<\/span><\/span><span class=\"field-value\" id=\"result-11\"><\/span><button type=\"button\" class=\"copy-result\" data-tooltip=\"Copiar resultado\" aria-label=\"Copiar resultado\"><span class=\"copy-icon icon icon-document-copy\" aria-hidden=\"true\"><\/span><\/button><\/div><div class=\"field-result is-column\" id=\"output-12\"><span class=\"field-title\"><span>IP e m\u00e1scara em bin\u00e1rio<\/span><\/span><span class=\"field-value\" id=\"result-12\"><\/span><button type=\"button\" class=\"copy-result\" data-tooltip=\"Copiar resultado\" aria-label=\"Copiar resultado\"><span class=\"copy-icon icon icon-document-copy\" aria-hidden=\"true\"><\/span><\/button><\/div><div class=\"field-result is-column\" id=\"output-13\"><span class=\"field-title\"><span>IP e m\u00e1scara em hexadecimal<\/span><\/span><span class=\"field-value\" id=\"result-13\"><\/span><button type=\"button\" class=\"copy-result\" data-tooltip=\"Copiar resultado\" aria-label=\"Copiar resultado\"><span class=\"copy-icon icon icon-document-copy\" aria-hidden=\"true\"><\/span><\/button><\/div><div class=\"field-result is-column\" id=\"output-14\"><span class=\"field-title\"><span>Sub-redes iguais<\/span><\/span><span class=\"field-value\" id=\"result-14\"><\/span><button type=\"button\" class=\"copy-result\" data-tooltip=\"Copiar resultado\" aria-label=\"Copiar resultado\"><span class=\"copy-icon icon icon-document-copy\" aria-hidden=\"true\"><\/span><\/button><\/div><\/div><div class=\"result-actions\"><button type=\"button\" class=\"copy-link\"><svg viewBox=\"0 0 20 20\" fill=\"currentColor\" aria-hidden=\"true\"><path d=\"M12.232 4.232a2.5 2.5 0 0 1 3.536 3.536l-1.225 1.224a.75.75 0 0 0 1.061 1.06l1.224-1.224a4 4 0 0 0-5.656-5.656l-3 3a4 4 0 0 0 .225 5.865.75.75 0 0 0 .977-1.138 2.5 2.5 0 0 1-.142-3.667l3-3Z\"\/><path d=\"M11.603 7.963a.75.75 0 0 0-.977 1.138 2.5 2.5 0 0 1 .142 3.667l-3 3a2.5 2.5 0 0 1-3.536-3.536l1.225-1.224a.75.75 0 0 0-1.061-1.06l-1.224 1.224a4 4 0 1 0 5.656 5.656l3-3a4 4 0 0 0-.225-5.865Z\"\/><\/svg><span class=\"copy-link__text\">Copiar link para este c\u00e1lculo<\/span><\/button><span class=\"sr-only\" role=\"status\" id=\"copy-link-status\"><\/span><\/div><\/div><a href=\"#respond\" class=\"hidden transition-opacity duration-300 opacity-0 w-50 text-sm justify-center items-center gap-2 px-4 py-2 rounded bg-gray-200 text-gray-700 hover:bg-gray-300\" id=\"leave-comment\"><span class=\"icon icon-comments\" aria-hidden=\"true\"><\/span>Deixar um coment\u00e1rio<\/a><\/form><\/section><section id=\"calc-reactions\" class=\"not-prose hidden my-12 bg-gradient-to-r from-primary-50 to-gray-50 border border-indigo-100 rounded-xl px-6 py-4 shadow-sm\" data-post=\"2954\" aria-live=\"polite\" aria-labelledby=\"calc-reactions-title\"><p id=\"calc-reactions-title\" class=\"text-sm text-gray-500 text-center mb-2\">O que voc\u00ea achou deste resultado?<\/p><div role=\"group\" aria-labelledby=\"calc-reactions-title\" class=\"grid grid-cols-3 sm:flex sm:flex-row sm:justify-around gap-4 sm:items-center sm:flex-wrap\"><button type=\"button\" aria-pressed=\"false\" class=\"reaction-btn flex flex-col items-center gap-1 text-sm text-gray-700 hover:text-primary-600 cursor-pointer transition-transform hover:scale-105\" data-reaction=\"like\"><span class=\"reaction-count\" data-reaction-count=\"like\">0<\/span><span class=\"reaction text-3xl\" aria-hidden=\"true\">\ud83d\ude00 <\/span><span class=\"reaction-description font-medium\">Curti <\/span><\/button><button type=\"button\" aria-pressed=\"false\" class=\"reaction-btn flex flex-col items-center gap-1 text-sm text-gray-700 hover:text-primary-600 cursor-pointer transition-transform hover:scale-105\" data-reaction=\"helpful\"><span class=\"reaction-count\" data-reaction-count=\"helpful\">0<\/span><span class=\"reaction text-3xl\" aria-hidden=\"true\">\ud83d\udca1 <\/span><span class=\"reaction-description font-medium\">\u00datil <\/span><\/button><button type=\"button\" aria-pressed=\"false\" class=\"reaction-btn flex flex-col items-center gap-1 text-sm text-gray-700 hover:text-primary-600 cursor-pointer transition-transform hover:scale-105\" data-reaction=\"confused\"><span class=\"reaction-count\" data-reaction-count=\"confused\">0<\/span><span class=\"reaction text-3xl\" aria-hidden=\"true\">\ud83d\ude15 <\/span><span class=\"reaction-description font-medium\">Confuso <\/span><\/button><button type=\"button\" aria-pressed=\"false\" class=\"reaction-btn flex flex-col items-center gap-1 text-sm text-gray-700 hover:text-primary-600 cursor-pointer transition-transform hover:scale-105\" data-reaction=\"disappointed\"><span class=\"reaction-count\" data-reaction-count=\"disappointed\">0<\/span><span class=\"reaction text-3xl\" aria-hidden=\"true\">\ud83d\ude1e <\/span><span class=\"reaction-description font-medium\">Decepcionado <\/span><\/button><button type=\"button\" aria-pressed=\"false\" class=\"reaction-btn flex flex-col items-center gap-1 text-sm text-gray-700 hover:text-primary-600 cursor-pointer transition-transform hover:scale-105\" data-reaction=\"inaccurate\"><span class=\"reaction-count\" data-reaction-count=\"inaccurate\">0<\/span><span class=\"reaction text-3xl\" aria-hidden=\"true\">\u274c <\/span><span class=\"reaction-description font-medium\">Impreciso <\/span><\/button><\/div><div id=\"reaction-message\" class=\"hidden mt-8 rounded-md border border-primary-100 bg-white\/50 backdrop-blur-sm px-4 py-2 text-sm text-center shadow-sm\"><\/div><\/section><div class=\"calcdash-ad not-prose calcdash-ad--calc_result calcdash-ad--in-article\"><ins class=\"adsbygoogle\" style=\"display:block\" data-ad-client=\"ca-pub-1721569815777345\" data-ad-slot=\"6317458308\" data-ad-layout=\"in-article\" data-ad-format=\"fluid\"><\/ins><script>(adsbygoogle = window.adsbygoogle || []).push({});<\/script><\/div>\n<style id=\"wpcoderpro-inline-1\">.formula-box {\r\n\tborder-bottom: none !important;\r\n}<\/style><section class=\"formula-box\" aria-labelledby=\"formula-title\">\r\n\t<div id=\"formula-title\" class=\"not-prose font-display mb-4\"><span class=\"icon icon-formula\" aria-hidden=\"true\"><\/span><h2>F\u00f3rmula da sub-rede<\/h2><\/div>\r\n\t<figure class=\"not-prose formula\">\r\n\t\t<figcaption class=\"formula-title\">F\u00f3rmula<\/figcaption>\r\n\t\t<div class=\"text-base text-gray-800\" id=\"formula\">\n\\[M=\\text{m\u00e1scara de 32 bits com }p\\text{ bits 1 iniciais}\\]\n\\[N=I\\mathbin{\\mathrm{AND}}M\\]\n\\[W=\\mathbin{\\mathrm{NOT}}M,\\qquad B=N\\mathbin{\\mathrm{OR}}W\\]\n\\[T=2^{32-p}\\]\n<\/div>\r\n\t<\/figure>\r\n\t<\/p>\n<p><strong>Onde:<\/strong><\/p>\n<ul>\n<li>\\(I\\) \u2014 o endere\u00e7o IPv4 representado como um n\u00famero de 32 bits.<\/li>\n<li>\\(p\\) \u2014 o comprimento do prefixo, de 0 a 32.<\/li>\n<li>\\(M\\) \u2014 a m\u00e1scara de sub-rede; \\(W\\) \u00e9 o seu inverso, ou m\u00e1scara curinga.<\/li>\n<li>\\(N\\) \u2014 o endere\u00e7o de rede; \\(B\\) \u00e9 o endere\u00e7o de broadcast exibido pela calculadora.<\/li>\n<li>\\(T\\) \u2014 o total de endere\u00e7os da sub-rede.<\/li>\n<\/ul>\n<p>A m\u00e1scara preserva os bits de rede do endere\u00e7o IP. Os bits restantes determinam a faixa de endere\u00e7os da sub-rede.<\/p>\n<p>\r\n<\/section>\n<style id=\"wpcoderpro-inline-2\">.calculation-box {\r\n\tborder-bottom: none !important;\r\n}<\/style><section id=\"calculation\" class=\"calculation-box\" aria-labelledby=\"calculation-title\">\r\n\t<div id=\"calculation-title\" class=\"not-prose font-display\"><span class=\"icon icon-unordered-list\" aria-hidden=\"true\"><\/span><h2>Sub-rede \u2013 Exemplo de c\u00e1lculo<\/h2><\/div>\r\n\r\n<\/p>\n<p><strong>Exemplo:<\/strong> use o endere\u00e7o IP padr\u00e3o, 192.168.1.10, com o comprimento de prefixo padr\u00e3o, \/24, e deixe a op\u00e7\u00e3o Dividir sub-rede em N\u00e3o dividir.<\/p>\n<p>Para \/24, a m\u00e1scara de sub-rede \u00e9 255.255.255.0 e a m\u00e1scara curinga \u00e9 0.0.0.255.<\/p>\n<p>\\[N=192.168.1.10\\mathbin{\\mathrm{AND}}255.255.255.0=192.168.1.0\\]<\/p>\n<p>\\[B=192.168.1.0\\mathbin{\\mathrm{OR}}0.0.0.255=192.168.1.255\\]<\/p>\n<p>\\[T=2^{32-24}=256,\\qquad \\text{hosts utiliz\u00e1veis}=256-2=254\\]<\/p>\n<p><strong>Resultado:<\/strong> a sub-rede \u00e9 192.168.1.0\/24, com endere\u00e7os de host utiliz\u00e1veis de 192.168.1.1 a 192.168.1.254. Ela cont\u00e9m 256 endere\u00e7os no total e 254 hosts utiliz\u00e1veis.<\/p>\n<p>\n\r\n<\/section>\n<h2>Como usar a calculadora<\/h2>\n<ol>\n<li>Digite um endere\u00e7o IPv4 em <strong>Endere\u00e7o IP<\/strong>, como 192.168.1.10. Voc\u00ea pode incluir um sufixo CIDR, como 192.168.1.10\/24; esse sufixo tem prioridade sobre o prefixo ou a m\u00e1scara selecionados abaixo.<\/li>\n<li>Escolha o <strong>Formato da sub-rede<\/strong>. Selecione <strong>Comprimento do prefixo<\/strong> para escolher um valor de \/0 a \/32, ou <strong>M\u00e1scara de sub-rede em decimal<\/strong> para digitar uma <strong>M\u00e1scara de sub-rede<\/strong> cont\u00edgua, como 255.255.255.0.<\/li>\n<li>Defina <strong>Dividir sub-rede<\/strong> como <strong>N\u00e3o dividir<\/strong> para ver os detalhes da sub-rede original. Para dividi-la, selecione <strong>Em N sub-redes iguais<\/strong> e digite o <strong>N\u00famero de sub-redes (N)<\/strong>, ou selecione <strong>Por novo comprimento de prefixo<\/strong> e escolha o <strong>Novo comprimento de prefixo<\/strong>.<\/li>\n<li>Leia os <strong>Detalhes da sub-rede<\/strong> para ver a rede, a faixa de endere\u00e7os, as m\u00e1scaras e as quantidades de hosts. Se voc\u00ea pediu uma divis\u00e3o, consulte as <strong>Sub-redes iguais<\/strong> para ver cada rede resultante e sua faixa de hosts.<\/li>\n<\/ol>\n<h2>O que uma sub-rede IPv4 revela<\/h2>\n<p>Um endere\u00e7o IPv4 tem 32 bits. O comprimento do prefixo indica quantos bits iniciais identificam a rede; os bits restantes distinguem os endere\u00e7os dentro dela. A nota\u00e7\u00e3o CIDR combina um endere\u00e7o de rede e um prefixo, como 192.168.1.0\/24. Uma m\u00e1scara de sub-rede em decimal expressa a mesma fronteira: \/24 corresponde a 255.255.255.0. A m\u00e1scara curinga inverte os bits da m\u00e1scara, portanto neste exemplo ela \u00e9 0.0.0.255.<\/p>\n<p>O <strong>Endere\u00e7o de rede<\/strong> \u00e9 o primeiro endere\u00e7o da faixa calculada, e o <strong>Endere\u00e7o de broadcast<\/strong> \u00e9 o \u00faltimo. Em uma sub-rede comum de \/0 a \/30, a calculadora exclui esses dois extremos ao informar o <strong>Primeiro host utiliz\u00e1vel<\/strong>, o <strong>\u00daltimo host utiliz\u00e1vel<\/strong> e os <strong>Hosts utiliz\u00e1veis<\/strong>. O <strong>Total de endere\u00e7os<\/strong> continua incluindo os dois extremos. Esses n\u00fameros descrevem o tamanho da faixa, e n\u00e3o quantos dispositivos est\u00e3o conectados ou quantos endere\u00e7os a sua rede consegue realmente atribuir.<\/p>\n<p>A <strong>Classe de IP<\/strong> descreve o endere\u00e7o digitado usando as categorias hist\u00f3ricas das classes. As fronteiras de sub-rede modernas v\u00eam do prefixo ou da m\u00e1scara selecionada, n\u00e3o da classe. O <strong>Tipo de endere\u00e7o<\/strong> classifica o IP digitado em rela\u00e7\u00e3o \u00e0s faixas privadas e de uso especial mais comuns; ele n\u00e3o classifica todos os endere\u00e7os da sub-rede resultante. O r\u00f3tulo \u201cP\u00fablico\u201d apenas significa que o IP n\u00e3o correspondeu \u00e0s faixas de uso especial comuns verificadas aqui \u2014 ele n\u00e3o garante que o endere\u00e7o esteja atribu\u00eddo ou acess\u00edvel.<\/p>\n<h2>Dividindo uma sub-rede em partes iguais<\/h2>\n<p>Para criar \\(s\\) sub-redes iguais, em que \\(s\\) \u00e9 uma pot\u00eancia de dois, adicione \\(\\log_2(s)\\) bits ao prefixo original. Por exemplo, dividir uma \/24 em quatro sub-redes gera redes \/26. Cada \/26 cont\u00e9m \\(2^{32-26}=64\\) endere\u00e7os no total e, pela regra usual dos extremos, 62 hosts utiliz\u00e1veis. As quatro redes come\u00e7am em 192.168.1.0, 192.168.1.64, 192.168.1.128 e 192.168.1.192.<\/p>\n<p>Como alternativa, escolha um <strong>Novo comprimento de prefixo<\/strong> maior. A calculadora determina quantas sub-redes iguais cabem e lista o endere\u00e7o de rede de cada uma, o endere\u00e7o de broadcast exibido, a faixa de hosts e a quantidade de hosts utiliz\u00e1veis. A divis\u00e3o precisa caber dentro do prefixo original e gerar no m\u00e1ximo 256 linhas. Ao digitar o <strong>N\u00famero de sub-redes (N)<\/strong>, use uma pot\u00eancia de dois entre 2 e 256.<\/p>\n<h2>Premissas e limites pr\u00e1ticos<\/h2>\n<ul>\n<li>S\u00e3o aceitos apenas endere\u00e7os IPv4 e m\u00e1scaras de sub-rede cont\u00edguas. Esta calculadora n\u00e3o processa IPv6.<\/li>\n<li>Para \/31, os dois endere\u00e7os contam como utiliz\u00e1veis em um enlace ponto a ponto, conforme a RFC 3021. O campo rotulado <strong>Endere\u00e7o de broadcast<\/strong> continua exibindo o endere\u00e7o mais alto, mas nesse uso ele n\u00e3o \u00e9 um endere\u00e7o de broadcast convencional. Para \/32, o endere\u00e7o \u00fanico conta como um host utiliz\u00e1vel, e os endere\u00e7os de rede e de broadcast exibidos s\u00e3o id\u00eanticos.<\/li>\n<li>As contagens de hosts s\u00e3o contagens matem\u00e1ticas. Faixas reservadas, regras de roteamento, atribui\u00e7\u00f5es do provedor e configura\u00e7\u00f5es locais podem restringir ainda mais os endere\u00e7os que voc\u00ea pode usar.<\/li>\n<\/ul>\n<p>O resultado <strong>IP e m\u00e1scara em bin\u00e1rio<\/strong> deixa vis\u00edvel a fronteira dos bits de rede; o <a href=\"https:\/\/wpcalc.com\/pt\/ferramentas-web\/conversor-binario\/\">conversor bin\u00e1rio<\/a> pode ajudar ao examinar valores de bits individuais. O resultado <strong>IP e m\u00e1scara em hexadecimal<\/strong> mostra cada valor de 32 bits em hexadecimal, que voc\u00ea pode explorar mais com o <a href=\"https:\/\/wpcalc.com\/pt\/ferramentas-web\/conversor-de-hexadecimal\/\">conversor hexadecimal<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Descubra o endere\u00e7o de rede, o endere\u00e7o de broadcast, a faixa de hosts e a quantidade de endere\u00e7os de uma rede IPv4. Digite um endere\u00e7o IP e escolha o comprimento do prefixo ou a m\u00e1scara de sub-rede; voc\u00ea tamb\u00e9m pode dividir a sub-rede.<\/p>\n","protected":false},"author":3168,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[15],"tags":[93],"class_list":["post-2954","post","type-post","status-publish","format-standard","hentry","category-ferramentas-web","tag-ferramentas-de-rede"],"acf":[],"_links":{"self":[{"href":"https:\/\/wpcalc.com\/pt\/wp-json\/wp\/v2\/posts\/2954","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/wpcalc.com\/pt\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/wpcalc.com\/pt\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/wpcalc.com\/pt\/wp-json\/wp\/v2\/users\/3168"}],"replies":[{"embeddable":true,"href":"https:\/\/wpcalc.com\/pt\/wp-json\/wp\/v2\/comments?post=2954"}],"version-history":[{"count":0,"href":"https:\/\/wpcalc.com\/pt\/wp-json\/wp\/v2\/posts\/2954\/revisions"}],"wp:attachment":[{"href":"https:\/\/wpcalc.com\/pt\/wp-json\/wp\/v2\/media?parent=2954"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/wpcalc.com\/pt\/wp-json\/wp\/v2\/categories?post=2954"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/wpcalc.com\/pt\/wp-json\/wp\/v2\/tags?post=2954"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}