What is CIDR notation?

CIDR (Classless Inter-Domain Routing) specifies the number of leading bits reserved for the network address (e.g. /24 equals 24 network bits and 255.255.255.0).

How many usable hosts are in a /24 subnet?

A /24 subnet has 256 total IP addresses, with 254 usable hosts (the first IP is the network address and the last IP is the broadcast address).

What are private RFC 1918 address ranges?

Private ranges reserved for local networks are 10.0.0.0/8, 172.16.0.0/12, and 192.168.0.0/16. They cannot be routed directly over the public Internet.

What is CIDR notation?

CIDR (Classless Inter-Domain Routing) specifies the number of leading bits reserved for the network address (e.g. /24 equals 24 network bits and 255.255.255.0).

How many usable hosts are in a /24 subnet?

A /24 subnet has 256 total IP addresses, with 254 usable hosts (the first IP is the network address and the last IP is the broadcast address).

What are private RFC 1918 address ranges?

Private ranges reserved for local networks are 10.0.0.0/8, 172.16.0.0/12, and 192.168.0.0/16. They cannot be routed directly over the public Internet.

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