diff --git a/src/Types.h b/src/Types.h
new file mode 100644
index 0000000..1a45092
--- /dev/null
+++ b/src/Types.h
@@ -0,0 +1,124 @@
+/*
+ * Types.h
+ *
+ *  Created on: 11.09.2015
+ *      Author: jdi
+ */
+
+#ifndef TYPES_H_
+#define TYPES_H_
+
+#include <initializer_list>
+#include <algorithm>
+#include <iostream>
+#include <iomanip>
+#include <vector>
+#include <array>
+
+#include "bytes.h"
+#include "datasets.h"
+
+class macAddr: public std::array<byte, 6> {
+public:
+	friend std::ostream& operator<<(std::ostream& out, const macAddr& arr) {
+		out << std::hex << std::setw(2) << std::setfill('0')
+				<< (unsigned) arr[0];
+		for (unsigned i = 1; i < 6; i++) {
+			out << ":" << std::setw(2) << std::setfill('0')
+					<< (unsigned) arr[i];
+		}
+		return out;
+	}
+
+	macAddr() {
+		*this= {0,0,0,0,0,0};
+	}
+
+	macAddr(std::initializer_list<byte> s) {
+		int i = 0;
+        for (byte b : s) {
+        	if(i<6) (*this)[i++]=b;
+        	else break;
+        }
+	}
+
+	macAddr(bytes bts) {
+		int i = 0;
+        for (byte b : bts) {
+        	if(i<6) (*this)[i++]=b;
+        	else break;
+        }
+	}
+};
+
+/*
+class mac_addr : public std::array<unsigned char, 6> {
+public:
+	typedef std::array<unsigned char, 6> super;
+
+	using super::super;
+
+	mac_addr{00, 00, 00, 000};
+};
+*/
+
+
+class ipAddr: public std::array<byte, 4> {
+public:
+
+	ipAddr() {
+		*this= {0,0,0,0,0,0};
+	}
+
+	ipAddr(std::initializer_list<byte> s) {
+		int i = 0;
+        for (byte  b : s) {
+        	if(i<4) (*this)[i++]=b;
+        	else break;
+        }
+	}
+
+	ipAddr(bytes bts) {
+		int i = 0;
+        for (byte b : bts) {
+        	if(i<4) (*this)[i++]=b;
+        	else break;
+        }
+	}
+
+	friend std::ostream& operator<<(std::ostream& out, ipAddr& arr) {
+		out << std::dec << (unsigned) arr[0];
+		for (unsigned i = 1; i < 4; i++) {
+			out << "." << (unsigned) arr[i];
+		}
+		return out;
+	}
+};
+
+template<typename T>
+std::vector<T> operator+(const std::vector<T> &A, const std::vector<T> &B) {
+	std::vector<T> AB;
+	AB.reserve(A.size() + B.size());                // preallocate memory
+	AB.insert(AB.end(), A.begin(), A.end());        // add A;
+	AB.insert(AB.end(), B.begin(), B.end());        // add B;
+	return AB;
+}
+
+template<typename T>
+std::vector<T> &operator+=(std::vector<T> &A, const std::vector<T> &B) {
+	A.reserve(A.size() + B.size());
+	A.insert(A.end(), B.begin(), B.end());
+	return A;
+}
+
+struct Options {
+	unsigned flags = 0x00;
+	std::string user;
+	std::string password;
+	std::string interface;
+	std::string file;
+	int debug_level=0;
+	long timeout;
+};
+
+#endif /* TYPES_H_ */
diff --git a/src/bytes.cpp b/src/bytes.cpp
new file mode 100644
index 0000000..bdc8c9d
--- /dev/null
+++ b/src/bytes.cpp
@@ -0,0 +1,28 @@
+/*
+ * Bytes.cpp
+ *
+ *  Created on: 02.10.2015
+ *      Author: jdi
+ */
+
+#include "bytes.h"
+
+bytes::bytes(std::string d) {
+	vector();
+	std::string delimiter = ":";
+	std::string token;
+	size_t pos = 0;
+	int hex;
+	byte b;
+	resize(0);
+	while ((pos = d.find(delimiter)) != std::string::npos) {
+		token = d.substr(0, pos);
+		sscanf(token.c_str(), "%x", &hex);
+		d.erase(0, pos + delimiter.length());
+		b = hex & 0xFF;
+		push_back(b);
+	}
+	sscanf(d.c_str(), "%x", &hex);
+	b = hex & 0xFF;
+	push_back(b);
+}
diff --git a/src/bytes.h b/src/bytes.h
new file mode 100644
index 0000000..dcc0ec9
--- /dev/null
+++ b/src/bytes.h
@@ -0,0 +1,86 @@
+/*
+ * Bytes.h
+ *
+ *  Created on: 02.10.2015
+ *      Author: jdi
+ */
+
+#ifndef BYTES_H_
+#define BYTES_H_
+
+#include <initializer_list>
+#include <functional>
+#include <iostream>
+#include <iomanip>
+#include <string>
+#include <vector>
+#include <map>
+
+typedef unsigned char byte;
+
+class bytes: public std::vector<unsigned char> {
+	typedef std::vector<unsigned char> vector;
+public:
+	using vector::operator[];
+	bytes() {
+	}
+	bytes(int n) :
+			vector(n) {
+	}
+
+	bytes(std::string);
+
+	bytes(std::initializer_list<uint8_t> s)
+	{
+		for (uint8_t b : s) {
+			this->push_back(b);
+    }
+	}
+
+	bytes(const vector &B) {
+		this->reserve(B.size());
+		this->insert(this->begin(), B.begin(), B.end());
+	}
+
+	bytes readHex(std::string s){
+		return bytes(s);
+	}
+
+	bytes operator=(const vector &B) {
+		this->reserve(B.size());
+		this->insert(this->begin(), B.begin(), B.end());
+		return *this;
+	}
+
+	bytes &operator+=(const bytes &B) {
+		this->reserve(this->size() + B.size());
+		this->insert(this->end(), B.begin(), B.end());
+		return *this;
+	}
+
+	bytes operator+(const bytes &B) {
+		bytes AB;
+		AB.reserve(this->size() + B.size());
+		AB.insert(AB.end(), this->begin(), this->end());
+		AB.insert(AB.end(), B.begin(), B.end());
+		return AB;
+	}
+
+	friend std::ostream& operator<<(std::ostream& out, const bytes& arr) {
+		if (arr.size() > 0) {
+			out << std::hex << std::setw(2) << std::setfill('0')
+					<< (unsigned) arr[0];
+		}
+		for (unsigned i = 1; i < arr.size(); i++) {
+			out << ":" << std::setw(2) << std::setfill('0') << (unsigned) arr[i];
+		}
+		return out;
+	}
+
+	operator std::string() {
+		std::string s(this->begin(),this->end());
+		return s;
+	}
+};
+
+#endif /* BYTES_H_ */
diff --git a/src/datasets.cpp b/src/datasets.cpp
new file mode 100644
index 0000000..63529b4
--- /dev/null
+++ b/src/datasets.cpp
@@ -0,0 +1,8 @@
+/*
+ * Datasets.cpp
+ *
+ *  Created on: 02.10.2015
+ *      Author: jdi
+ */
+
+#include "datasets.h"
diff --git a/src/datasets.h b/src/datasets.h
new file mode 100644
index 0000000..e570b18
--- /dev/null
+++ b/src/datasets.h
@@ -0,0 +1,31 @@
+/*
+ * Datasets.h
+ *
+ *  Created on: 02.10.2015
+ *      Author: jdi
+ */
+
+#ifndef DATASETS_H_
+#define DATASETS_H_
+
+#include <map>
+#include "bytes.h"
+
+struct dataset {
+	short type;
+	short len;
+	bytes value;
+};
+
+class datasets : public std::map<short, dataset> {
+public:
+	datasets(){};
+	datasets(std::initializer_list<dataset> s)
+	{
+		for (dataset b : s) {
+			(*this)[b.type]=b;
+		}
+    }
+};
+
+#endif /* DATASETS_H_ */
diff --git a/src/lookupTable.cpp b/src/lookupTable.cpp
new file mode 100644
index 0000000..389ef3c
--- /dev/null
+++ b/src/lookupTable.cpp
@@ -0,0 +1,31 @@
+/*
+ * lookupTable.h
+ *
+ *  Created on: 11.10.2015
+ *      Author: jdi
+ */
+
+#include "lookupTable.h"
+
+lookupTable::lookupTable(std::initializer_list<set> l) {
+	int i = 0;
+	this->data.resize(l.size());
+	for (set s : l) {
+		this->data[i] = s;
+		this->left[s.type] = &this->data[i];
+		this->right[s.name] = &this->data[i];
+		i++;
+	}
+}
+const short& lookupTable::operator[](std::string s) {
+	return this->right[s]->type;
+}
+const std::string& lookupTable::operator[](short n) {
+	return this->left[n]->name;
+}
+bool lookupTable::exists(std::string s) {
+	return !(right.find(s) == right.end());
+}
+bool lookupTable::exists(short n) {
+	return !(left.find(n) == left.end());
+}
diff --git a/src/lookupTable.h b/src/lookupTable.h
new file mode 100644
index 0000000..f293ca7
--- /dev/null
+++ b/src/lookupTable.h
@@ -0,0 +1,31 @@
+/*
+ * lookupTable.h
+ *
+ *  Created on: 11.10.2015
+ *      Author: jdi
+ */
+
+#ifndef LOOKUPTABLE_H_
+#define LOOKUPTABLE_H_
+
+#include <map>
+#include <vector>
+
+class lookupTable {
+public:
+	struct set {
+		short type;
+		std::string name;
+	};
+	lookupTable(std::initializer_list<set> l);
+	const short& operator[](std::string s);
+	const std::string& operator[](short n);
+	bool exists(std::string s);
+	bool exists(short n);
+private:
+	std::vector<set> data;
+	std::map<short, set*> left;
+	std::map<std::string, set*> right;
+};
+
+#endif /* LOOKUPTABLE_H_ */