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Imprumutarea de biti

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Notatia CIDR<br />

Classless lassless Inter nterdomain omain Routing outing este o metoda <strong>de</strong><br />

reprezentare a adreselor IP si a mastilor <strong>de</strong><br />

subretea printr-un printr un prefix.<br />

De exemplu: exemplu:<br />

192.168.50.0/27<br />

Ce va spune ultimul 27?<br />

– 27 este numarul <strong>de</strong> <strong>biti</strong> din masca <strong>de</strong> subretea, subretea,<br />

care este<br />

<strong>de</strong>ci 255.255.255.224<br />

– De asemenea, asemenea stim ca 192 este o clasa C, <strong>de</strong>ci am<br />

imprumutat 3 <strong>biti</strong><br />

Sa urmarim impreuna niste exemple CIDR:

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