MediaWiki:Blockiptext
From Wikivyuka
Use the form below to block write access from a specific IP address or username. This should be done only to prevent vandalism, and in accordance with policy. Fill in a specific reason below (for example, citing particular pages that were vandalized). You can block IP address ranges using the CIDR syntax; the largest allowed range is /$1 for IPv4 and /$2 for IPv6.