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-- A range is a table representing a CIDR block such as 1.2.248.0/21. ... -- Check for duplicates which can interfere with method to get ranges. for i, ip in ipairs ...
This template accepts IPv4 or IPv6 addresses as input and displays minimum-sized blocks of addresses that cover all of the inputs. The result uses CIDR notation and can be used by an administrator to block a range of IP addresses. The template can be used by editing any page, inserting the template, and previewing the result.
Simply enter the range at Special:Contributions. You can also do a wildcard search (e.g. 83.217.178.*) using the Contribsrange gadget gadget. Enable "Allow /16, /24 and /27 – /32 CIDR ranges" at Special:Preferences#mw-prefsection-gadgets under "Advanced". Then type in any CIDR range into Special:Contribs
Each / 8 block contains 256 3 = 2 24 = 16,777,216 addresses, which covers the whole range of the last three delimited segments of an IP address. This means that 256 /8 address blocks fit into the entire IPv4 space.
Special address blocks Address block (CIDR) First address Last address Number of addresses Usage Purpose ::/128 :: :: 1 Software Unspecified address
8 - shows link to current block list, filtered for the IP(/range); 16 - shows link to block log for the IP[/range]; 32 - shows link to page to block the IP[/range] for 1 hour (default). Only useful for special applications. The values may be bitwise OR'ed (similar to many program languages). In other words: may be added to get any combination ...
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These groups, commonly called CIDR blocks, share an initial sequence of bits in the binary representation of their IP addresses. IPv4 CIDR blocks are identified using a syntax similar to that of IPv4 addresses: a dotted-decimal address, followed by a slash, then a number from 0 to 32, i.e., a.b.c.d / n. The dotted decimal portion is the IPv4 ...