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broadcast address

The last address of a subnet, with all host bits 1; a packet sent there goes to every device on the subnet.

The broadcast address has every host bit set to 1; IPv4 delivers a packet sent to it to all hosts on the subnet.

Examples

  • For the sensor at 192.168.1.37/24, setting every host bit to 1 gives the broadcast address 192.168.1.255.

  • The last usable host on 192.168.1.0/24 is the broadcast address minus 1, 192.168.1.254.

See also

network address subnet prefix length
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