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External Data Source

Source

Regular Expression
^(((([1]?\d)?\d|2[0-4]\d|25[0-5])\.){3}(([1]?\d)?\d|2[0-4]\d|25[0-5]))|([\da-fA-F]{1,4}(\:[\da-fA-F]{1,4}){7})|(([\da-fA-F]{1,4}:){0,5}::([\da-fA-F]{1,4}:){0,5}[\da-fA-F]{1,4})$