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Main article: IPv4 subnetting reference It is a common misunderstanding that addresses ending in 255 or 0 can never be assigned to hosts. This is only true of networks with subnet masks of at least 24 bits — Class C networks in the old classful addressing scheme, or in CIDR, networks with masks of /24 to /32 (or 255.255.255.0–255.255.255.255).

Wikipedia IPv4 subnetting reference In the IPv4 address space certain address blocks are specially allocated or reserved for special uses such as loopback interfaces, private networks ( RFC 1918 ), [ 1 ] and state-less autoconfiguration ( Zeroconf , RFC 3927 ) [ 2 ] of interfaces.

19/08/2021 · IPv4 Subnet Chart . Those who start towards the path of CCNA realize IPv4 subnetting is a core component that continues throughout the rest of the Cisco certification tracks. The IPv4 address is an address used to uniquely identify a device on an IP network.

In IPv4, la maschera di sottorete, composta da 32 bit, di solito ha una sequenza di "1" seguita da un blocco di "0". L'ultimo blocco di zeri designa la parte di identificatore di host. Subnetting è un processo di assegnazione dei bit della porzione host al raggruppamento con la porzione di rete. Questo divide una rete in sottoreti più piccole.