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/([\dA-Fa-f]{2}:[\dA-Fa-f]{2}:[\dA-Fa-f]{2}:[\dA-Fa-f]{2}:[\dA-Fa-f]{2 +}:[\dA-Fa-f]{2})/g);
/([\dA-F]{2}(?::[\dA-F]{2}){5})/ig);