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CIDR notation is a compact representation of an IP address and its associated network mask. The notation was invented by Phil Karn in the 1980s. [ 9 ] [ 10 ] CIDR notation specifies an IP address, a slash ('/') character, and a decimal number.
A network and wildcard mask combination of 1.1.1.1 0.0.0.0 would match an interface configured exactly with 1.1.1.1 only, and nothing else. Wildcard masks are used in situations where subnet masks may not apply. For example, when two affected hosts fall in different subnets, the use of a wildcard mask will group them together.
The modern standard form of specification of the network prefix is CIDR notation, used for both IPv4 and IPv6. It counts the number of bits in the prefix and appends that number to the address after a slash (/) character separator. This notation was introduced with Classless Inter-Domain Routing (CIDR). [2]
The leading set of bits of the addresses are identical for all hosts in a given network, and are called the network's address or routing prefix. Network address ranges are written in CIDR notation. A network is denoted by the first address in the block (ending in all zeroes), a slash (/), and a decimal value equal to the size in bits of the prefix.
A computer network diagram is a schematic depicting the nodes and connections amongst nodes in a computer network or, more generally, any telecommunications network. Computer network diagrams form an important part of network documentation.
A classful network is an obsolete network addressing architecture used in the Internet from 1981 until the introduction of Classless Inter-Domain Routing (CIDR) in 1993. The method divides the IP address space for Internet Protocol version 4 (IPv4) into five address classes based on the leading four address bits.
The first parameter is the IP address to be displayed. The second parameter is optional and indicates the number of bits in the network address in CIDR notation. If given, it is appended to the first with a slash (/) as a separator. When the option netmask=dotted is set, the second argument (if present) is translated to a dotted decimal netmask.
IPv4 addresses must be in dot-decimal notation, and IPv6 addresses must be enclosed in brackets ([]). [13]: §3.2.2 [c] An optional port subcomponent preceded by a colon (:), consisting of decimal digits. A path component, consisting of a sequence of path segments separated by a slash (/). A path is always defined for a URI, though the defined ...