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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.
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.
If the user has been blocked in the past, a link to the block log will be shown. Also automatically disables a hard block when blocking bots. EasyBlock – Block+template script with numerous options on types of blocks. This is quicker than Twinkle but does not allow you to choose block options. Many admins use both scripts.
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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If an ISP deploys a CGN and uses private Internet address space [2] (networks 10.0.0.0 / 8, 172.16.0.0 / 12, 192.168.0.0 / 16) to connect their customers, there is a risk that customer equipment using an internal network in the same range will stop working.