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[o]" accesskey="o"><span class="vector-icon mw-ui-icon-logIn mw-ui-icon-wikimedia-logIn"></span> <span>Zaloguj się</span></a></li> </ul> </div> </div> <div id="p-user-menu-anon-editor" class="vector-menu mw-portlet mw-portlet-user-menu-anon-editor" > <div class="vector-menu-heading"> Strony dla anonimowych edytorów <a href="/wiki/Pomoc:Pierwsze_kroki" aria-label="Dowiedz się więcej na temat edytowania"><span>dowiedz się więcej</span></a> </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="pt-anoncontribs" class="mw-list-item"><a href="/wiki/Specjalna:M%C3%B3j_wk%C5%82ad" title="Lista edycji wykonanych z tego adresu IP [y]" accesskey="y"><span>Edycje</span></a></li><li id="pt-anontalk" class="mw-list-item"><a href="/wiki/Specjalna:Moja_dyskusja" title="Dyskusja użytkownika dla tego adresu IP [n]" accesskey="n"><span>Dyskusja</span></a></li> </ul> </div> </div> </div> </div> </nav> </div> </header> </div> <div class="mw-page-container"> <div class="mw-page-container-inner"> <div class="vector-sitenotice-container"> <div id="siteNotice"></div> </div> <div class="vector-column-start"> <div class="vector-main-menu-container"> <div id="mw-navigation"> <nav id="mw-panel" class="vector-main-menu-landmark" aria-label="Witryna"> <div id="vector-main-menu-pinned-container" class="vector-pinned-container"> </div> </nav> </div> </div> <div class="vector-sticky-pinned-container"> <nav id="mw-panel-toc" aria-label="Spis treści" data-event-name="ui.sidebar-toc" class="mw-table-of-contents-container vector-toc-landmark"> <div id="vector-toc-pinned-container" class="vector-pinned-container"> <div id="vector-toc" class="vector-toc vector-pinnable-element"> <div class="vector-pinnable-header vector-toc-pinnable-header vector-pinnable-header-pinned" data-feature-name="toc-pinned" data-pinnable-element-id="vector-toc" > <h2 class="vector-pinnable-header-label">Spis treści</h2> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-toc.pin">przypnij</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-toc.unpin">ukryj</button> </div> <ul class="vector-toc-contents" id="mw-panel-toc-list"> <li id="toc-mw-content-text" class="vector-toc-list-item vector-toc-level-1"> <a href="#" class="vector-toc-link"> <div class="vector-toc-text">Początek</div> </a> </li> <li id="toc-Przykład" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Przykład"> <div class="vector-toc-text"> <span class="vector-toc-numb">1</span> <span>Przykład</span> </div> </a> <ul id="toc-Przykład-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Przypisy" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Przypisy"> <div class="vector-toc-text"> <span class="vector-toc-numb">2</span> <span>Przypisy</span> </div> </a> <ul id="toc-Przypisy-sublist" class="vector-toc-list"> </ul> </li> </ul> </div> </div> </nav> </div> </div> <div class="mw-content-container"> <main id="content" class="mw-body"> <header class="mw-body-header vector-page-titlebar"> <nav aria-label="Spis treści" class="vector-toc-landmark"> <div id="vector-page-titlebar-toc" class="vector-dropdown vector-page-titlebar-toc vector-button-flush-left" > <input type="checkbox" id="vector-page-titlebar-toc-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-page-titlebar-toc" class="vector-dropdown-checkbox " aria-label="Przełącz stan spisu treści" > <label id="vector-page-titlebar-toc-label" for="vector-page-titlebar-toc-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-listBullet mw-ui-icon-wikimedia-listBullet"></span> <span class="vector-dropdown-label-text">Przełącz stan spisu treści</span> </label> <div class="vector-dropdown-content"> <div id="vector-page-titlebar-toc-unpinned-container" class="vector-unpinned-container"> </div> </div> </div> </nav> <h1 id="firstHeading" class="firstHeading mw-first-heading"><span class="mw-page-title-main">Classless Inter-Domain Routing</span></h1> <div id="p-lang-btn" class="vector-dropdown mw-portlet mw-portlet-lang" > <input type="checkbox" id="p-lang-btn-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-p-lang-btn" class="vector-dropdown-checkbox mw-interlanguage-selector" aria-label="Przejdź do artykułu w innym języku. Treść dostępna w 27 językach" > <label id="p-lang-btn-label" for="p-lang-btn-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--action-progressive mw-portlet-lang-heading-27" aria-hidden="true" ><span class="vector-icon mw-ui-icon-language-progressive mw-ui-icon-wikimedia-language-progressive"></span> <span class="vector-dropdown-label-text">27 języków</span> </label> <div class="vector-dropdown-content"> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="interlanguage-link interwiki-ar mw-list-item"><a href="https://ar.wikipedia.org/wiki/%D8%AA%D9%88%D8%AC%D9%8A%D9%87_%D8%A8%D9%8A%D9%86_%D9%86%D8%B7%D8%A7%D9%82%D9%8A_%D8%BA%D9%8A%D8%B1_%D8%B5%D9%86%D9%81%D9%8A" title="توجيه بين نطاقي غير صنفي – arabski" lang="ar" hreflang="ar" data-title="توجيه بين نطاقي غير صنفي" data-language-autonym="العربية" data-language-local-name="arabski" class="interlanguage-link-target"><span>العربية</span></a></li><li class="interlanguage-link interwiki-an mw-list-item"><a href="https://an.wikipedia.org/wiki/Classless_Inter-Domain_Routing" title="Classless Inter-Domain Routing – aragoński" lang="an" hreflang="an" data-title="Classless Inter-Domain Routing" data-language-autonym="Aragonés" data-language-local-name="aragoński" class="interlanguage-link-target"><span>Aragonés</span></a></li><li class="interlanguage-link interwiki-ca mw-list-item"><a href="https://ca.wikipedia.org/wiki/Classless_Inter-Domain_Routing" title="Classless Inter-Domain Routing – kataloński" lang="ca" hreflang="ca" data-title="Classless Inter-Domain Routing" data-language-autonym="Català" data-language-local-name="kataloński" class="interlanguage-link-target"><span>Català</span></a></li><li class="interlanguage-link interwiki-cs mw-list-item"><a href="https://cs.wikipedia.org/wiki/Classless_Inter-Domain_Routing" title="Classless Inter-Domain Routing – czeski" lang="cs" hreflang="cs" data-title="Classless Inter-Domain Routing" data-language-autonym="Čeština" data-language-local-name="czeski" class="interlanguage-link-target"><span>Čeština</span></a></li><li class="interlanguage-link interwiki-de mw-list-item"><a href="https://de.wikipedia.org/wiki/Classless_Inter-Domain_Routing" title="Classless Inter-Domain Routing – niemiecki" lang="de" hreflang="de" data-title="Classless Inter-Domain Routing" data-language-autonym="Deutsch" data-language-local-name="niemiecki" class="interlanguage-link-target"><span>Deutsch</span></a></li><li class="interlanguage-link interwiki-en mw-list-item"><a href="https://en.wikipedia.org/wiki/Classless_Inter-Domain_Routing" title="Classless Inter-Domain Routing – angielski" lang="en" hreflang="en" data-title="Classless Inter-Domain Routing" data-language-autonym="English" data-language-local-name="angielski" class="interlanguage-link-target"><span>English</span></a></li><li class="interlanguage-link interwiki-es mw-list-item"><a href="https://es.wikipedia.org/wiki/Classless_Inter-Domain_Routing" title="Classless Inter-Domain Routing – hiszpański" lang="es" hreflang="es" data-title="Classless Inter-Domain Routing" data-language-autonym="Español" data-language-local-name="hiszpański" class="interlanguage-link-target"><span>Español</span></a></li><li class="interlanguage-link interwiki-fr badge-Q70893996 mw-list-item" title=""><a href="https://fr.wikipedia.org/wiki/CIDR" title="CIDR – francuski" lang="fr" hreflang="fr" data-title="CIDR" data-language-autonym="Français" data-language-local-name="francuski" class="interlanguage-link-target"><span>Français</span></a></li><li class="interlanguage-link interwiki-ko mw-list-item"><a href="https://ko.wikipedia.org/wiki/CIDR" title="CIDR – koreański" lang="ko" hreflang="ko" data-title="CIDR" data-language-autonym="한국어" data-language-local-name="koreański" class="interlanguage-link-target"><span>한국어</span></a></li><li class="interlanguage-link interwiki-hr mw-list-item"><a href="https://hr.wikipedia.org/wiki/CIDR" title="CIDR – chorwacki" lang="hr" hreflang="hr" data-title="CIDR" data-language-autonym="Hrvatski" data-language-local-name="chorwacki" class="interlanguage-link-target"><span>Hrvatski</span></a></li><li class="interlanguage-link interwiki-id mw-list-item"><a href="https://id.wikipedia.org/wiki/Classless_Inter-Domain_Routing" title="Classless Inter-Domain Routing – indonezyjski" lang="id" hreflang="id" data-title="Classless Inter-Domain Routing" data-language-autonym="Bahasa Indonesia" data-language-local-name="indonezyjski" class="interlanguage-link-target"><span>Bahasa Indonesia</span></a></li><li class="interlanguage-link interwiki-it mw-list-item"><a href="https://it.wikipedia.org/wiki/Supernetting#CIDR" title="Supernetting – włoski" lang="it" hreflang="it" data-title="Supernetting" data-language-autonym="Italiano" data-language-local-name="włoski" class="interlanguage-link-target"><span>Italiano</span></a></li><li class="interlanguage-link interwiki-lv mw-list-item"><a href="https://lv.wikipedia.org/wiki/Bezklases_starpdom%C4%93nu_mar%C5%A1rut%C4%93%C5%A1ana" title="Bezklases starpdomēnu maršrutēšana – łotewski" lang="lv" hreflang="lv" data-title="Bezklases starpdomēnu maršrutēšana" data-language-autonym="Latviešu" data-language-local-name="łotewski" class="interlanguage-link-target"><span>Latviešu</span></a></li><li class="interlanguage-link interwiki-mk mw-list-item"><a href="https://mk.wikipedia.org/wiki/CIDR" title="CIDR – macedoński" lang="mk" hreflang="mk" data-title="CIDR" data-language-autonym="Македонски" data-language-local-name="macedoński" class="interlanguage-link-target"><span>Македонски</span></a></li><li class="interlanguage-link interwiki-nl mw-list-item"><a href="https://nl.wikipedia.org/wiki/Classless_Inter-Domain_Routing" title="Classless Inter-Domain Routing – niderlandzki" lang="nl" hreflang="nl" data-title="Classless Inter-Domain Routing" data-language-autonym="Nederlands" data-language-local-name="niderlandzki" class="interlanguage-link-target"><span>Nederlands</span></a></li><li class="interlanguage-link interwiki-ja mw-list-item"><a href="https://ja.wikipedia.org/wiki/Classless_Inter-Domain_Routing" title="Classless Inter-Domain Routing – japoński" lang="ja" hreflang="ja" data-title="Classless Inter-Domain Routing" data-language-autonym="日本語" data-language-local-name="japoński" class="interlanguage-link-target"><span>日本語</span></a></li><li class="interlanguage-link interwiki-no mw-list-item"><a href="https://no.wikipedia.org/wiki/Classless_Inter-Domain_Routing" title="Classless Inter-Domain Routing – norweski (bokmål)" lang="nb" hreflang="nb" data-title="Classless Inter-Domain Routing" data-language-autonym="Norsk bokmål" data-language-local-name="norweski (bokmål)" class="interlanguage-link-target"><span>Norsk bokmål</span></a></li><li class="interlanguage-link interwiki-pt mw-list-item"><a href="https://pt.wikipedia.org/wiki/Roteamento_entre_dom%C3%ADnios_sem_classes" title="Roteamento entre domínios sem classes – portugalski" lang="pt" hreflang="pt" data-title="Roteamento entre domínios sem classes" data-language-autonym="Português" data-language-local-name="portugalski" class="interlanguage-link-target"><span>Português</span></a></li><li class="interlanguage-link interwiki-ru mw-list-item"><a href="https://ru.wikipedia.org/wiki/%D0%91%D0%B5%D1%81%D0%BA%D0%BB%D0%B0%D1%81%D1%81%D0%BE%D0%B2%D0%B0%D1%8F_%D0%B0%D0%B4%D1%80%D0%B5%D1%81%D0%B0%D1%86%D0%B8%D1%8F" title="Бесклассовая адресация – rosyjski" lang="ru" hreflang="ru" data-title="Бесклассовая адресация" data-language-autonym="Русский" data-language-local-name="rosyjski" class="interlanguage-link-target"><span>Русский</span></a></li><li class="interlanguage-link interwiki-simple mw-list-item"><a href="https://simple.wikipedia.org/wiki/Classless_Inter-Domain_Routing" title="Classless Inter-Domain Routing – Simple English" lang="en-simple" hreflang="en-simple" data-title="Classless Inter-Domain Routing" data-language-autonym="Simple English" data-language-local-name="Simple English" class="interlanguage-link-target"><span>Simple English</span></a></li><li class="interlanguage-link interwiki-sr mw-list-item"><a href="https://sr.wikipedia.org/wiki/CIDR" title="CIDR – serbski" lang="sr" hreflang="sr" data-title="CIDR" data-language-autonym="Српски / srpski" data-language-local-name="serbski" class="interlanguage-link-target"><span>Српски / srpski</span></a></li><li class="interlanguage-link interwiki-fi mw-list-item"><a href="https://fi.wikipedia.org/wiki/Luokaton_reititys" title="Luokaton reititys – fiński" lang="fi" hreflang="fi" data-title="Luokaton reititys" data-language-autonym="Suomi" data-language-local-name="fiński" class="interlanguage-link-target"><span>Suomi</span></a></li><li class="interlanguage-link interwiki-sv mw-list-item"><a href="https://sv.wikipedia.org/wiki/Classless_Inter-Domain_Routing" title="Classless Inter-Domain Routing – szwedzki" lang="sv" hreflang="sv" data-title="Classless Inter-Domain Routing" data-language-autonym="Svenska" data-language-local-name="szwedzki" class="interlanguage-link-target"><span>Svenska</span></a></li><li class="interlanguage-link interwiki-tr mw-list-item"><a href="https://tr.wikipedia.org/wiki/S%C4%B1n%C4%B1fs%C4%B1z_alanlar_aras%C4%B1_y%C3%B6nlendirme" title="Sınıfsız alanlar arası yönlendirme – turecki" lang="tr" hreflang="tr" data-title="Sınıfsız alanlar arası yönlendirme" data-language-autonym="Türkçe" data-language-local-name="turecki" class="interlanguage-link-target"><span>Türkçe</span></a></li><li class="interlanguage-link interwiki-uk mw-list-item"><a href="https://uk.wikipedia.org/wiki/CIDR" title="CIDR – ukraiński" lang="uk" hreflang="uk" data-title="CIDR" data-language-autonym="Українська" data-language-local-name="ukraiński" class="interlanguage-link-target"><span>Українська</span></a></li><li class="interlanguage-link interwiki-vi mw-list-item"><a href="https://vi.wikipedia.org/wiki/Classless_Inter-Domain_Routing" title="Classless Inter-Domain Routing – wietnamski" lang="vi" hreflang="vi" data-title="Classless Inter-Domain Routing" data-language-autonym="Tiếng Việt" data-language-local-name="wietnamski" class="interlanguage-link-target"><span>Tiếng Việt</span></a></li><li class="interlanguage-link interwiki-zh mw-list-item"><a href="https://zh.wikipedia.org/wiki/%E6%97%A0%E7%B1%BB%E5%88%AB%E5%9F%9F%E9%97%B4%E8%B7%AF%E7%94%B1" title="无类别域间路由 – chiński" lang="zh" hreflang="zh" data-title="无类别域间路由" data-language-autonym="中文" data-language-local-name="chiński" class="interlanguage-link-target"><span>中文</span></a></li> </ul> <div class="after-portlet after-portlet-lang"><span class="wb-langlinks-edit wb-langlinks-link"><a href="https://www.wikidata.org/wiki/Special:EntityPage/Q646589#sitelinks-wikipedia" 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id="mw-content-text" class="mw-body-content"><div class="mw-content-ltr mw-parser-output" lang="pl" dir="ltr"><p><b>Classless Inter-Domain Routing</b> (<b>CIDR</b>) – bezklasowa metoda przydzielania adresów IP, wprowadzona w 1993 roku przez <a href="/wiki/Internet_Engineering_Task_Force" title="Internet Engineering Task Force">Internet Engineering Task Force</a> w celu zastąpienia wcześniejszego, klasowego sposobu adresacji. </p><p>Jest usprawnieniem protokołu <a href="/wiki/IPv4" title="IPv4">IPv4</a> zaadaptowanym także do protokołu <a href="/wiki/IPv6" title="IPv6">IPv6</a>. W CIDR długość <a href="/wiki/Maska_podsieci" title="Maska podsieci">maski podsieci</a> jest dostosowana do potrzeb danej podsieci lub wpisu w <a href="/wiki/Tablica_trasowania" title="Tablica trasowania">tablicy routingu</a> (ang. <em lang="en">variable length subnet masks</em> – <a href="/wiki/VLSM" title="VLSM">VLSM</a>), a nie ustalana jedna dla całej sieci. CIDR pozwala na efektywniejsze wykorzystywanie puli adresów IP oraz zmniejszenie tablic routingu. </p><p>CIDR wykorzystuje maskę podsieci do ustalenia zmiennej części 32-bitowego adresu IP sieci. Może przy tym wykorzystywać „agregację tras” na różnych poziomach, co pozwala na ograniczenie ilości wpisów w tablicy routingu, w której umieszczany jest wówczas wpis, w którym adres sieci jest wspólny dla wszystkich agregowanych podsieci. </p><p>CIDR umożliwia wydajniejszy przydział przestrzeni adresowej IPv4 przez eliminację tradycyjnej koncepcji <a href="/wiki/IPv4#Rozdzielanie_adresów_(historyczne)" title="IPv4">klas adresów IP</a>. CIDR pozwala na używanie masek sieciowych różnej długości dla adresów z dowolnej podsieci, w przeciwieństwie do modelu z klasami, w których występowały jedynie maski długości 8, 16, 24 bitów. W modelu CIDR każda część informacji routingu jest rozgłaszana wraz z maską sieci, która określa liczbę bitów (licząc od lewej strony) używanych dla części sieciowej adresu IP. Wprowadzenie CIDR wiązało się z problemem niewystarczającej ilości dostępnych adresów IP w wersji 4. protokołu. </p><p>CIDR nie gwarantuje sprawnej i skalowalnej hierarchii. W celu uniknięcia osobnego wpisu dla każdej trasy, jest ważne, aby routery w niższej hierarchii sieci (które naturalnie mają dłuższe przedrostki numeru) były „zbierane” na wyższym poziomie w hierarchii routingu razem, tworząc w ten sposób mniejsze i mniej specyficzne trasy. </p><p>Adres CIDR w zależności od maski sieciowej przedstawia poniższa tabela: </p> <table class="wikitable" style="text-align: right;"> <tbody><tr> <th>CIDR </th> <th>Wielkość w odniesieniu do klas </th> <th>Liczba adresów<sup id="cite_ref-1" class="reference"><a href="#cite_note-1">[1]</a></sup> </th> <th>Maska podsieci </th></tr> <tr> <td>/32 </td> <td>1/256 C </td> <td>1 </td> <td>255.255.255.255 </td></tr> <tr> <td>/31 </td> <td>1/128 C </td> <td>2 </td> <td>255.255.255.254 </td></tr> <tr> <td>/30 </td> <td>1/64 C </td> <td>4 </td> <td>255.255.255.252 </td></tr> <tr> <td>/29 </td> <td>1/32 C </td> <td>8 </td> <td>255.255.255.248 </td></tr> <tr> <td>/28 </td> <td>1/16 C </td> <td>16 </td> <td>255.255.255.240 </td></tr> <tr> <td>/27 </td> <td>1/8 C </td> <td>32 </td> <td>255.255.255.224 </td></tr> <tr> <td>/26 </td> <td>1/4 C </td> <td>64 </td> <td>255.255.255.192 </td></tr> <tr> <td>/25 </td> <td>1/2 C </td> <td>128 </td> <td>255.255.255.128 </td></tr> <tr> <td>/24 </td> <td>1 C </td> <td>256 </td> <td>255.255.255.000 </td></tr> <tr> <td>/23 </td> <td>2 C </td> <td>512 </td> <td>255.255.254.000 </td></tr> <tr> <td>/22 </td> <td>4 C </td> <td>1024 </td> <td>255.255.252.000 </td></tr> <tr> <td>/21 </td> <td>8 C </td> <td>2048 </td> <td>255.255.248.000 </td></tr> <tr> <td>/20 </td> <td>16 C </td> <td>4096 </td> <td>255.255.240.000 </td></tr> <tr> <td>/19 </td> <td>32 C </td> <td>8192 </td> <td>255.255.224.000 </td></tr> <tr> <td>/18 </td> <td>64 C </td> <td>16 384 </td> <td>255.255.192.000 </td></tr> <tr> <td>/17 </td> <td>128 C </td> <td>32 768 </td> <td>255.255.128.000 </td></tr> <tr> <td>/16 </td> <td>256 C, 1 B </td> <td>65 536 </td> <td>255.255.000.000 </td></tr> <tr> <td>/15 </td> <td>512 C, 2 B </td> <td>131 072 </td> <td>255.254.000.000 </td></tr> <tr> <td>/14 </td> <td>1024 C, 4 B </td> <td>262 144 </td> <td>255.252.000.000 </td></tr> <tr> <td>/13 </td> <td>2048 C, 8 B </td> <td>524 288 </td> <td>255.248.000.000 </td></tr> <tr> <td>/12 </td> <td>4096 C, 16 B </td> <td>1 048 576 </td> <td>255.240.000.000 </td></tr> <tr> <td>/11 </td> <td>8192 C, 32 B </td> <td>2 097 152 </td> <td>255.224.000.000 </td></tr> <tr> <td>/10 </td> <td>16384 C, 64 B </td> <td>4 194 304 </td> <td>255.192.000.000 </td></tr> <tr> <td>/9 </td> <td>32768 C, 128 B </td> <td>8 388 608 </td> <td>255.128.000.000 </td></tr> <tr> <td>/8 </td> <td>65536 C, 256 B, 1 A </td> <td>16 777 216 </td> <td>255.000.000.000 </td></tr> <tr> <td>/7 </td> <td>131072 C, 512 B, 2 A </td> <td>33 554 432 </td> <td>254.000.000.000 </td></tr> <tr> <td>/6 </td> <td>262144 C, 1024 B, 4 A </td> <td>67 108 864 </td> <td>252.000.000.000 </td></tr> <tr> <td>/5 </td> <td>524288 C, 2048 B, 8 A </td> <td>134 217 728 </td> <td>248.000.000.000 </td></tr> <tr> <td>/4 </td> <td>1048576 C, 4096 B, 16 A </td> <td>268 435 456 </td> <td>240.000.000.000 </td></tr> <tr> <td>/3 </td> <td>2097152 C, 8192 B, 32 A </td> <td>536 870 912 </td> <td>224.000.000.000 </td></tr> <tr> <td>/2 </td> <td>4194304 C, 16384 B, 64 A </td> <td>1 073 741 824 </td> <td>192.000.000.000 </td></tr> <tr> <td>/1 </td> <td>8388608 C, 32768 B, 128 A </td> <td>2 147 483 648 </td> <td>128.000.000.000 </td></tr> <tr> <td>/0 </td> <td>16777216 C, 65536 B, 256 A </td> <td>4 294 967 296 </td> <td>000.000.000.000 </td></tr></tbody></table> <div class="mw-heading mw-heading2"><h2 id="Przykład"><span id="Przyk.C5.82ad"></span>Przykład</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Classless_Inter-Domain_Routing&veaction=edit&section=1" title="Edytuj sekcję: Przykład" class="mw-editsection-visualeditor"><span>edytuj</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Classless_Inter-Domain_Routing&action=edit&section=1" title="Edytuj kod źródłowy sekcji: Przykład"><span>edytuj kod</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Adres sieciowy 192.168.2.112/29 – czyli 29 bitów maski jest używanych do określenia adresu podsieci, 3 pozostałe bity są używane do adresacji hostów. </p><p>Maska w zapisie dwójkowym: </p> <dl><dd><code>11111111.11111111.11111111.11111000</code></dd></dl> <p>Adres sieciowy w zapisie dwójkowym: </p> <dl><dd><code>11000000.10101000.00000010.01110000</code></dd></dl> <p>W masce tego typu można zaadresować 2<sup>3</sup> = 8 hostów. Użytecznych adresów hostów będzie jednak tylko 6, ponieważ w tym wypadku adres 192.168.2.112 jest użyty jako adres podsieci, natomiast adres 192.168.2.119 (ostatni w tej podsieci) jest adresem rozgłoszeniowym (ang. <em lang="en">broadcast</em>). </p> <div class="mw-heading mw-heading2"><h2 id="Przypisy">Przypisy</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Classless_Inter-Domain_Routing&veaction=edit&section=2" title="Edytuj sekcję: Przypisy" class="mw-editsection-visualeditor"><span>edytuj</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Classless_Inter-Domain_Routing&action=edit&section=2" title="Edytuj kod źródłowy sekcji: Przypisy"><span>edytuj kod</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="do-not-make-smaller refsection"><div class="mw-references-wrap"><ol class="references"> <li id="cite_note-1"><span class="mw-cite-backlink"><a href="#cite_ref-1">↑</a></span> <span class="reference-text">Liczba adresów zawiera także adresy sieci, rozgłoszeniowy oraz zarezerwowane obszary puli adresowej IP, które nie mogą być przyporządkowywane hostom. 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