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revista completa - ANPE BADAJOZ

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“Método del cambio de base para cálculo manual de subredes con IP V4.0 “ –José Antonio Guijarro Guijarro – ISSN: 1989-9041, Autodidacta ©Tercera:Cuarta:iii. x = n * sx = 3 * 32768 = 98304 -> x es mayor que 65536iv. x : 65536 = y,d98304 : 65536 = 1,5 -> y=1; d=5v. 0,d * 65536 = z0,5 * 65536 = 32768vi. Z : 256 = c, e32768 : 256 = 128,0 -> c=128; e=0vii. 0,e * 256 = t0,0 * 256 = 0 -> t=0viii. La 3ª ip será = 118.1.128.0i. x = n * sx = 4 * 32768 = 131072 -> x es mayor que 65536ii. x : 65536 = y,d131072 : 65536 = 2,0 -> y=2; d=0 -> c=0; d=0Con lo que la ip es la 118.2.0.0Visto esto, podemos deducir las siguientes direcciones y escribirlas en la tabla:NºSubredIP de lasubredIP 1º HostIP ultimo host BROADCAST0 118.0.0.0 118.0.0.1 118.0.127.254 118.0.127.2551 118.0.128.0 118.0.128.1 118.0.255.254 118.0.255.2552 118.1.0.0 118.1.0.1 118.1.127.254 118.1.127.2553 118.1.128.0 118.1.128.1 118.1.255.254 118.1.255.2554 118.2.0.0 118.2.0.1 118.2.127.254 118.2.127.2555 118.2.128.0 118.2.128.1 118.2.255.254 118.2.255.2556 118.3.0.0 118.3.0.1 118.3.127.254 118.3.127.2557 118.3.128.0 118.3.128.1 118.3.255.254 118.3.255.2558 118.4.0.0 118.4.0.1 118.4.127.254 118.4.127.2559 118.4.128.0 118.4.128.1 118.4.255.254 118.4.255.255d) La dirección ip de la subred útil número 23, la podemos deducir siguiendo elmismo procedimiento anterior, es decir:i. x = n * sx = 23 * 32768 = 753664 -> x es mayor que 65536ii. x : 65536 = y,d753664 : 65536 = 11,5 -> y=11; d=5iii. 0,d * 65536 = z0,5 * 65536 = 32768201

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