/** @brief プライベートMACアドレスかどうか */ - (BOOL)isPrivateMACAddress:(NSString *)macAddress { // 2文字目が下記ならプライベートMACアドレス NSCharacterSet *privateMACAddressCharSet = [NSCharacterSet characterSetWithCharactersInString:@"2367abefABEF"]; return [privateMACAddressCharSet characterIsMember:[macAddress characterAtIndex:1]]; } NSArray *macAddresses = @[@"5924a970c0a2", @"723d614ed27a", @"55002cd18b38", @"e193cb9c494