diff --git a/.dep.inc b/.dep.inc
index 4560e55..38ba445 100644
--- a/.dep.inc
+++ b/.dep.inc
@@ -1,5 +1,5 @@
 # This code depends on make tool being used
-DEPFILES=$(wildcard $(addsuffix .d, ${OBJECTFILES}))
+DEPFILES=$(wildcard $(addsuffix .d, ${OBJECTFILES} ${TESTOBJECTFILES}))
 ifneq (${DEPFILES},)
 include ${DEPFILES}
 endif
diff --git a/CMakeLists.txt b/CMakeLists.txt
new file mode 100644
index 0000000..47d2f3b
--- /dev/null
+++ b/CMakeLists.txt
@@ -0,0 +1,4 @@
+cmake_minimum_required(VERSION 3.3.2)
+project (121Nat)
+ADD_SUBDIRECTORY(src)
+
diff --git a/dist/package/PKGBUILD b/dist/package/PKGBUILD
new file mode 100644
index 0000000..5ae0bfe
--- /dev/null
+++ b/dist/package/PKGBUILD
@@ -0,0 +1,26 @@
+pkgname=121Nat
+pkgver=1.0 # note: if the pkgver had been '0.99-10' then use an underscore. like '0.99_10'
+pkgrel=1
+pkgdesc="transparent one to one nat"
+arch=(any)
+url="http://www.foo.org"
+license=('MIT')
+depends=('pth' 'jsoncpp')
+makedepends=('cmake')
+source=(./$pkgname-$pkgver.tar.gz)
+md5sums=('0e1494ebbcf0b0ca1bfa8475c5078f21')
+
+build() {
+  cd $srcdir/$pkgname
+  mkdir build
+  cd build
+  cmake -DCMAKE_INSTALL_PREFIX=/usr ../
+  make
+}
+
+package() {
+  cd $srcdir/$pkgname/build
+  make DESTDIR=$pkgdir install
+  mkdir -p $pkgdir/etc/$pkgname
+  cp ../src/config.json $pkgdir/etc/$pkgname/config-example.json
+}
diff --git a/nbproject/Makefile-Debug.mk b/nbproject/Makefile-Debug.mk
index 6eeb954..5e718d6 100644
--- a/nbproject/Makefile-Debug.mk
+++ b/nbproject/Makefile-Debug.mk
@@ -21,7 +21,7 @@ FC=gfortran
 AS=as
 
 # Macros
-CND_PLATFORM=GNU-Linux-x86
+CND_PLATFORM=GNU-Linux
 CND_DLIB_EXT=so
 CND_CONF=Debug
 CND_DISTDIR=dist
@@ -46,8 +46,16 @@ TESTDIR=${CND_BUILDDIR}/${CND_CONF}/${CND_PLATFORM}/tests
 
 # Test Files
 TESTFILES= \
+	${TESTDIR}/TestFiles/f2 \
 	${TESTDIR}/TestFiles/f1
 
+# Test Object Files
+TESTOBJECTFILES= \
+	${TESTDIR}/tests/jsontest.o \
+	${TESTDIR}/tests/jsontestrunner.o \
+	${TESTDIR}/tests/nattest.o \
+	${TESTDIR}/tests/nattestrunner.o
+
 # C Compiler Flags
 CFLAGS=
 
@@ -62,61 +70,79 @@ FFLAGS=
 ASFLAGS=
 
 # Link Libraries and Options
-LDLIBSOPTIONS=-ltins -lpthread
+LDLIBSOPTIONS=-ltins -lpthread `pkg-config --libs jsoncpp`  
 
 # Build Targets
 .build-conf: ${BUILD_SUBPROJECTS}
-	"${MAKE}"  -f nbproject/Makefile-${CND_CONF}.mk ${CND_DISTDIR}/${CND_CONF}/${CND_PLATFORM}/1t1nat
+	"${MAKE}"  -f nbproject/Makefile-${CND_CONF}.mk ${CND_DISTDIR}/${CND_CONF}/${CND_PLATFORM}/121nat
 
-${CND_DISTDIR}/${CND_CONF}/${CND_PLATFORM}/1t1nat: ${OBJECTFILES}
+${CND_DISTDIR}/${CND_CONF}/${CND_PLATFORM}/121nat: ${OBJECTFILES}
 	${MKDIR} -p ${CND_DISTDIR}/${CND_CONF}/${CND_PLATFORM}
-	${LINK.cc} -o ${CND_DISTDIR}/${CND_CONF}/${CND_PLATFORM}/1t1nat ${OBJECTFILES} ${LDLIBSOPTIONS}
+	${LINK.cc} -o ${CND_DISTDIR}/${CND_CONF}/${CND_PLATFORM}/121nat ${OBJECTFILES} ${LDLIBSOPTIONS}
 
 ${OBJECTDIR}/src/PduSender.o: src/PduSender.cpp 
 	${MKDIR} -p ${OBJECTDIR}/src
 	${RM} "$@.d"
-	$(COMPILE.cc) -g -Wall -std=c++11 -MMD -MP -MF "$@.d" -o ${OBJECTDIR}/src/PduSender.o src/PduSender.cpp
+	$(COMPILE.cc) -g -Wall `pkg-config --cflags jsoncpp` -std=c++11  -MMD -MP -MF "$@.d" -o ${OBJECTDIR}/src/PduSender.o src/PduSender.cpp
 
 ${OBJECTDIR}/src/PduSniffer.o: src/PduSniffer.cpp 
 	${MKDIR} -p ${OBJECTDIR}/src
 	${RM} "$@.d"
-	$(COMPILE.cc) -g -Wall -std=c++11 -MMD -MP -MF "$@.d" -o ${OBJECTDIR}/src/PduSniffer.o src/PduSniffer.cpp
+	$(COMPILE.cc) -g -Wall `pkg-config --cflags jsoncpp` -std=c++11  -MMD -MP -MF "$@.d" -o ${OBJECTDIR}/src/PduSniffer.o src/PduSniffer.cpp
 
 ${OBJECTDIR}/src/main.o: src/main.cpp 
 	${MKDIR} -p ${OBJECTDIR}/src
 	${RM} "$@.d"
-	$(COMPILE.cc) -g -Wall -std=c++11 -MMD -MP -MF "$@.d" -o ${OBJECTDIR}/src/main.o src/main.cpp
+	$(COMPILE.cc) -g -Wall `pkg-config --cflags jsoncpp` -std=c++11  -MMD -MP -MF "$@.d" -o ${OBJECTDIR}/src/main.o src/main.cpp
 
 ${OBJECTDIR}/src/map/NatRange.o: src/map/NatRange.cpp 
 	${MKDIR} -p ${OBJECTDIR}/src/map
 	${RM} "$@.d"
-	$(COMPILE.cc) -g -Wall -std=c++11 -MMD -MP -MF "$@.d" -o ${OBJECTDIR}/src/map/NatRange.o src/map/NatRange.cpp
+	$(COMPILE.cc) -g -Wall `pkg-config --cflags jsoncpp` -std=c++11  -MMD -MP -MF "$@.d" -o ${OBJECTDIR}/src/map/NatRange.o src/map/NatRange.cpp
 
 ${OBJECTDIR}/src/map/natmap.o: src/map/natmap.cpp 
 	${MKDIR} -p ${OBJECTDIR}/src/map
 	${RM} "$@.d"
-	$(COMPILE.cc) -g -Wall -std=c++11 -MMD -MP -MF "$@.d" -o ${OBJECTDIR}/src/map/natmap.o src/map/natmap.cpp
+	$(COMPILE.cc) -g -Wall `pkg-config --cflags jsoncpp` -std=c++11  -MMD -MP -MF "$@.d" -o ${OBJECTDIR}/src/map/natmap.o src/map/natmap.cpp
 
 # Subprojects
 .build-subprojects:
 
 # Build Test Targets
-.build-tests-conf: .build-conf ${TESTFILES}
+.build-tests-conf: .build-tests-subprojects .build-conf ${TESTFILES}
+.build-tests-subprojects:
+
+${TESTDIR}/TestFiles/f2: ${TESTDIR}/tests/jsontest.o ${TESTDIR}/tests/jsontestrunner.o ${OBJECTFILES:%.o=%_nomain.o}
+	${MKDIR} -p ${TESTDIR}/TestFiles
+	${LINK.cc}   -o ${TESTDIR}/TestFiles/f2 $^ ${LDLIBSOPTIONS} `cppunit-config --libs`   
+
 ${TESTDIR}/TestFiles/f1: ${TESTDIR}/tests/nattest.o ${TESTDIR}/tests/nattestrunner.o ${OBJECTFILES:%.o=%_nomain.o}
 	${MKDIR} -p ${TESTDIR}/TestFiles
 	${LINK.cc}   -o ${TESTDIR}/TestFiles/f1 $^ ${LDLIBSOPTIONS} `cppunit-config --libs`   
 
 
+${TESTDIR}/tests/jsontest.o: tests/jsontest.cpp 
+	${MKDIR} -p ${TESTDIR}/tests
+	${RM} "$@.d"
+	$(COMPILE.cc) -g -Wall `pkg-config --cflags jsoncpp` -std=c++11 `cppunit-config --cflags` -MMD -MP -MF "$@.d" -o ${TESTDIR}/tests/jsontest.o tests/jsontest.cpp
+
+
+${TESTDIR}/tests/jsontestrunner.o: tests/jsontestrunner.cpp 
+	${MKDIR} -p ${TESTDIR}/tests
+	${RM} "$@.d"
+	$(COMPILE.cc) -g -Wall `pkg-config --cflags jsoncpp` -std=c++11 `cppunit-config --cflags` -MMD -MP -MF "$@.d" -o ${TESTDIR}/tests/jsontestrunner.o tests/jsontestrunner.cpp
+
+
 ${TESTDIR}/tests/nattest.o: tests/nattest.cpp 
 	${MKDIR} -p ${TESTDIR}/tests
 	${RM} "$@.d"
-	$(COMPILE.cc) -g -Wall -I. -std=c++11 `cppunit-config --cflags` -MMD -MP -MF "$@.d" -o ${TESTDIR}/tests/nattest.o tests/nattest.cpp
+	$(COMPILE.cc) -g -Wall -I. `pkg-config --cflags jsoncpp` -std=c++11 `cppunit-config --cflags` -MMD -MP -MF "$@.d" -o ${TESTDIR}/tests/nattest.o tests/nattest.cpp
 
 
 ${TESTDIR}/tests/nattestrunner.o: tests/nattestrunner.cpp 
 	${MKDIR} -p ${TESTDIR}/tests
 	${RM} "$@.d"
-	$(COMPILE.cc) -g -Wall -I. -std=c++11 `cppunit-config --cflags` -MMD -MP -MF "$@.d" -o ${TESTDIR}/tests/nattestrunner.o tests/nattestrunner.cpp
+	$(COMPILE.cc) -g -Wall -I. `pkg-config --cflags jsoncpp` -std=c++11 `cppunit-config --cflags` -MMD -MP -MF "$@.d" -o ${TESTDIR}/tests/nattestrunner.o tests/nattestrunner.cpp
 
 
 ${OBJECTDIR}/src/PduSender_nomain.o: ${OBJECTDIR}/src/PduSender.o src/PduSender.cpp 
@@ -127,7 +153,7 @@ ${OBJECTDIR}/src/PduSender_nomain.o: ${OBJECTDIR}/src/PduSender.o src/PduSender.
 	   (echo "$$NMOUTPUT" | ${GREP} 'T _main$$'); \
 	then  \
 	    ${RM} "$@.d";\
-	    $(COMPILE.cc) -g -Wall -std=c++11 -Dmain=__nomain -MMD -MP -MF "$@.d" -o ${OBJECTDIR}/src/PduSender_nomain.o src/PduSender.cpp;\
+	    $(COMPILE.cc) -g -Wall `pkg-config --cflags jsoncpp` -std=c++11  -Dmain=__nomain -MMD -MP -MF "$@.d" -o ${OBJECTDIR}/src/PduSender_nomain.o src/PduSender.cpp;\
 	else  \
 	    ${CP} ${OBJECTDIR}/src/PduSender.o ${OBJECTDIR}/src/PduSender_nomain.o;\
 	fi
@@ -140,7 +166,7 @@ ${OBJECTDIR}/src/PduSniffer_nomain.o: ${OBJECTDIR}/src/PduSniffer.o src/PduSniff
 	   (echo "$$NMOUTPUT" | ${GREP} 'T _main$$'); \
 	then  \
 	    ${RM} "$@.d";\
-	    $(COMPILE.cc) -g -Wall -std=c++11 -Dmain=__nomain -MMD -MP -MF "$@.d" -o ${OBJECTDIR}/src/PduSniffer_nomain.o src/PduSniffer.cpp;\
+	    $(COMPILE.cc) -g -Wall `pkg-config --cflags jsoncpp` -std=c++11  -Dmain=__nomain -MMD -MP -MF "$@.d" -o ${OBJECTDIR}/src/PduSniffer_nomain.o src/PduSniffer.cpp;\
 	else  \
 	    ${CP} ${OBJECTDIR}/src/PduSniffer.o ${OBJECTDIR}/src/PduSniffer_nomain.o;\
 	fi
@@ -153,7 +179,7 @@ ${OBJECTDIR}/src/main_nomain.o: ${OBJECTDIR}/src/main.o src/main.cpp
 	   (echo "$$NMOUTPUT" | ${GREP} 'T _main$$'); \
 	then  \
 	    ${RM} "$@.d";\
-	    $(COMPILE.cc) -g -Wall -std=c++11 -Dmain=__nomain -MMD -MP -MF "$@.d" -o ${OBJECTDIR}/src/main_nomain.o src/main.cpp;\
+	    $(COMPILE.cc) -g -Wall `pkg-config --cflags jsoncpp` -std=c++11  -Dmain=__nomain -MMD -MP -MF "$@.d" -o ${OBJECTDIR}/src/main_nomain.o src/main.cpp;\
 	else  \
 	    ${CP} ${OBJECTDIR}/src/main.o ${OBJECTDIR}/src/main_nomain.o;\
 	fi
@@ -166,7 +192,7 @@ ${OBJECTDIR}/src/map/NatRange_nomain.o: ${OBJECTDIR}/src/map/NatRange.o src/map/
 	   (echo "$$NMOUTPUT" | ${GREP} 'T _main$$'); \
 	then  \
 	    ${RM} "$@.d";\
-	    $(COMPILE.cc) -g -Wall -std=c++11 -Dmain=__nomain -MMD -MP -MF "$@.d" -o ${OBJECTDIR}/src/map/NatRange_nomain.o src/map/NatRange.cpp;\
+	    $(COMPILE.cc) -g -Wall `pkg-config --cflags jsoncpp` -std=c++11  -Dmain=__nomain -MMD -MP -MF "$@.d" -o ${OBJECTDIR}/src/map/NatRange_nomain.o src/map/NatRange.cpp;\
 	else  \
 	    ${CP} ${OBJECTDIR}/src/map/NatRange.o ${OBJECTDIR}/src/map/NatRange_nomain.o;\
 	fi
@@ -179,7 +205,7 @@ ${OBJECTDIR}/src/map/natmap_nomain.o: ${OBJECTDIR}/src/map/natmap.o src/map/natm
 	   (echo "$$NMOUTPUT" | ${GREP} 'T _main$$'); \
 	then  \
 	    ${RM} "$@.d";\
-	    $(COMPILE.cc) -g -Wall -std=c++11 -Dmain=__nomain -MMD -MP -MF "$@.d" -o ${OBJECTDIR}/src/map/natmap_nomain.o src/map/natmap.cpp;\
+	    $(COMPILE.cc) -g -Wall `pkg-config --cflags jsoncpp` -std=c++11  -Dmain=__nomain -MMD -MP -MF "$@.d" -o ${OBJECTDIR}/src/map/natmap_nomain.o src/map/natmap.cpp;\
 	else  \
 	    ${CP} ${OBJECTDIR}/src/map/natmap.o ${OBJECTDIR}/src/map/natmap_nomain.o;\
 	fi
@@ -188,6 +214,7 @@ ${OBJECTDIR}/src/map/natmap_nomain.o: ${OBJECTDIR}/src/map/natmap.o src/map/natm
 .test-conf:
 	@if [ "${TEST}" = "" ]; \
 	then  \
+	    ${TESTDIR}/TestFiles/f2 || true; \
 	    ${TESTDIR}/TestFiles/f1 || true; \
 	else  \
 	    ./${TEST} || true; \
@@ -196,7 +223,7 @@ ${OBJECTDIR}/src/map/natmap_nomain.o: ${OBJECTDIR}/src/map/natmap.o src/map/natm
 # Clean Targets
 .clean-conf: ${CLEAN_SUBPROJECTS}
 	${RM} -r ${CND_BUILDDIR}/${CND_CONF}
-	${RM} ${CND_DISTDIR}/${CND_CONF}/${CND_PLATFORM}/1t1nat
+	${RM} ${CND_DISTDIR}/${CND_CONF}/${CND_PLATFORM}/121nat
 
 # Subprojects
 .clean-subprojects:
diff --git a/nbproject/Makefile-Release.mk b/nbproject/Makefile-Release.mk
index 554cc2e..c1f6f30 100644
--- a/nbproject/Makefile-Release.mk
+++ b/nbproject/Makefile-Release.mk
@@ -21,7 +21,7 @@ FC=gfortran
 AS=as
 
 # Macros
-CND_PLATFORM=GNU-Linux-x86
+CND_PLATFORM=GNU-Linux
 CND_DLIB_EXT=so
 CND_CONF=Release
 CND_DISTDIR=dist
@@ -46,8 +46,16 @@ TESTDIR=${CND_BUILDDIR}/${CND_CONF}/${CND_PLATFORM}/tests
 
 # Test Files
 TESTFILES= \
+	${TESTDIR}/TestFiles/f2 \
 	${TESTDIR}/TestFiles/f1
 
+# Test Object Files
+TESTOBJECTFILES= \
+	${TESTDIR}/tests/jsontest.o \
+	${TESTDIR}/tests/jsontestrunner.o \
+	${TESTDIR}/tests/nattest.o \
+	${TESTDIR}/tests/nattestrunner.o
+
 # C Compiler Flags
 CFLAGS=
 
@@ -66,11 +74,11 @@ LDLIBSOPTIONS=
 
 # Build Targets
 .build-conf: ${BUILD_SUBPROJECTS}
-	"${MAKE}"  -f nbproject/Makefile-${CND_CONF}.mk ${CND_DISTDIR}/${CND_CONF}/${CND_PLATFORM}/1t1nat
+	"${MAKE}"  -f nbproject/Makefile-${CND_CONF}.mk ${CND_DISTDIR}/${CND_CONF}/${CND_PLATFORM}/121nat
 
-${CND_DISTDIR}/${CND_CONF}/${CND_PLATFORM}/1t1nat: ${OBJECTFILES}
+${CND_DISTDIR}/${CND_CONF}/${CND_PLATFORM}/121nat: ${OBJECTFILES}
 	${MKDIR} -p ${CND_DISTDIR}/${CND_CONF}/${CND_PLATFORM}
-	${LINK.cc} -o ${CND_DISTDIR}/${CND_CONF}/${CND_PLATFORM}/1t1nat ${OBJECTFILES} ${LDLIBSOPTIONS}
+	${LINK.cc} -o ${CND_DISTDIR}/${CND_CONF}/${CND_PLATFORM}/121nat ${OBJECTFILES} ${LDLIBSOPTIONS}
 
 ${OBJECTDIR}/src/PduSender.o: src/PduSender.cpp 
 	${MKDIR} -p ${OBJECTDIR}/src
@@ -101,12 +109,30 @@ ${OBJECTDIR}/src/map/natmap.o: src/map/natmap.cpp
 .build-subprojects:
 
 # Build Test Targets
-.build-tests-conf: .build-conf ${TESTFILES}
+.build-tests-conf: .build-tests-subprojects .build-conf ${TESTFILES}
+.build-tests-subprojects:
+
+${TESTDIR}/TestFiles/f2: ${TESTDIR}/tests/jsontest.o ${TESTDIR}/tests/jsontestrunner.o ${OBJECTFILES:%.o=%_nomain.o}
+	${MKDIR} -p ${TESTDIR}/TestFiles
+	${LINK.cc}   -o ${TESTDIR}/TestFiles/f2 $^ ${LDLIBSOPTIONS} `cppunit-config --libs`   
+
 ${TESTDIR}/TestFiles/f1: ${TESTDIR}/tests/nattest.o ${TESTDIR}/tests/nattestrunner.o ${OBJECTFILES:%.o=%_nomain.o}
 	${MKDIR} -p ${TESTDIR}/TestFiles
 	${LINK.cc}   -o ${TESTDIR}/TestFiles/f1 $^ ${LDLIBSOPTIONS} `cppunit-config --libs`   
 
 
+${TESTDIR}/tests/jsontest.o: tests/jsontest.cpp 
+	${MKDIR} -p ${TESTDIR}/tests
+	${RM} "$@.d"
+	$(COMPILE.cc) -O2 `cppunit-config --cflags` -MMD -MP -MF "$@.d" -o ${TESTDIR}/tests/jsontest.o tests/jsontest.cpp
+
+
+${TESTDIR}/tests/jsontestrunner.o: tests/jsontestrunner.cpp 
+	${MKDIR} -p ${TESTDIR}/tests
+	${RM} "$@.d"
+	$(COMPILE.cc) -O2 `cppunit-config --cflags` -MMD -MP -MF "$@.d" -o ${TESTDIR}/tests/jsontestrunner.o tests/jsontestrunner.cpp
+
+
 ${TESTDIR}/tests/nattest.o: tests/nattest.cpp 
 	${MKDIR} -p ${TESTDIR}/tests
 	${RM} "$@.d"
@@ -188,6 +214,7 @@ ${OBJECTDIR}/src/map/natmap_nomain.o: ${OBJECTDIR}/src/map/natmap.o src/map/natm
 .test-conf:
 	@if [ "${TEST}" = "" ]; \
 	then  \
+	    ${TESTDIR}/TestFiles/f2 || true; \
 	    ${TESTDIR}/TestFiles/f1 || true; \
 	else  \
 	    ./${TEST} || true; \
@@ -196,7 +223,7 @@ ${OBJECTDIR}/src/map/natmap_nomain.o: ${OBJECTDIR}/src/map/natmap.o src/map/natm
 # Clean Targets
 .clean-conf: ${CLEAN_SUBPROJECTS}
 	${RM} -r ${CND_BUILDDIR}/${CND_CONF}
-	${RM} ${CND_DISTDIR}/${CND_CONF}/${CND_PLATFORM}/1t1nat
+	${RM} ${CND_DISTDIR}/${CND_CONF}/${CND_PLATFORM}/121nat
 
 # Subprojects
 .clean-subprojects:
diff --git a/nbproject/Makefile-Unitest.mk b/nbproject/Makefile-Unitest.mk
index aa716f9..205e653 100644
--- a/nbproject/Makefile-Unitest.mk
+++ b/nbproject/Makefile-Unitest.mk
@@ -21,7 +21,7 @@ FC=gfortran
 AS=as
 
 # Macros
-CND_PLATFORM=GNU-Linux-x86
+CND_PLATFORM=GNU-Linux
 CND_DLIB_EXT=so
 CND_CONF=Unitest
 CND_DISTDIR=dist
@@ -46,8 +46,16 @@ TESTDIR=${CND_BUILDDIR}/${CND_CONF}/${CND_PLATFORM}/tests
 
 # Test Files
 TESTFILES= \
+	${TESTDIR}/TestFiles/f2 \
 	${TESTDIR}/TestFiles/f1
 
+# Test Object Files
+TESTOBJECTFILES= \
+	${TESTDIR}/tests/jsontest.o \
+	${TESTDIR}/tests/jsontestrunner.o \
+	${TESTDIR}/tests/nattest.o \
+	${TESTDIR}/tests/nattestrunner.o
+
 # C Compiler Flags
 CFLAGS=
 
@@ -66,11 +74,11 @@ LDLIBSOPTIONS=
 
 # Build Targets
 .build-conf: ${BUILD_SUBPROJECTS}
-	"${MAKE}"  -f nbproject/Makefile-${CND_CONF}.mk ${CND_DISTDIR}/${CND_CONF}/${CND_PLATFORM}/1t1nat
+	"${MAKE}"  -f nbproject/Makefile-${CND_CONF}.mk ${CND_DISTDIR}/${CND_CONF}/${CND_PLATFORM}/121nat
 
-${CND_DISTDIR}/${CND_CONF}/${CND_PLATFORM}/1t1nat: ${OBJECTFILES}
+${CND_DISTDIR}/${CND_CONF}/${CND_PLATFORM}/121nat: ${OBJECTFILES}
 	${MKDIR} -p ${CND_DISTDIR}/${CND_CONF}/${CND_PLATFORM}
-	${LINK.cc} -o ${CND_DISTDIR}/${CND_CONF}/${CND_PLATFORM}/1t1nat ${OBJECTFILES} ${LDLIBSOPTIONS}
+	${LINK.cc} -o ${CND_DISTDIR}/${CND_CONF}/${CND_PLATFORM}/121nat ${OBJECTFILES} ${LDLIBSOPTIONS}
 
 ${OBJECTDIR}/src/PduSender.o: src/PduSender.cpp 
 	${MKDIR} -p ${OBJECTDIR}/src
@@ -101,12 +109,30 @@ ${OBJECTDIR}/src/map/natmap.o: src/map/natmap.cpp
 .build-subprojects:
 
 # Build Test Targets
-.build-tests-conf: .build-conf ${TESTFILES}
+.build-tests-conf: .build-tests-subprojects .build-conf ${TESTFILES}
+.build-tests-subprojects:
+
+${TESTDIR}/TestFiles/f2: ${TESTDIR}/tests/jsontest.o ${TESTDIR}/tests/jsontestrunner.o ${OBJECTFILES:%.o=%_nomain.o}
+	${MKDIR} -p ${TESTDIR}/TestFiles
+	${LINK.cc}   -o ${TESTDIR}/TestFiles/f2 $^ ${LDLIBSOPTIONS} `cppunit-config --libs`   
+
 ${TESTDIR}/TestFiles/f1: ${TESTDIR}/tests/nattest.o ${TESTDIR}/tests/nattestrunner.o ${OBJECTFILES:%.o=%_nomain.o}
 	${MKDIR} -p ${TESTDIR}/TestFiles
 	${LINK.cc}   -o ${TESTDIR}/TestFiles/f1 $^ ${LDLIBSOPTIONS} `cppunit-config --libs`   
 
 
+${TESTDIR}/tests/jsontest.o: tests/jsontest.cpp 
+	${MKDIR} -p ${TESTDIR}/tests
+	${RM} "$@.d"
+	$(COMPILE.cc) -g -Itest -std=c++11 `cppunit-config --cflags` -MMD -MP -MF "$@.d" -o ${TESTDIR}/tests/jsontest.o tests/jsontest.cpp
+
+
+${TESTDIR}/tests/jsontestrunner.o: tests/jsontestrunner.cpp 
+	${MKDIR} -p ${TESTDIR}/tests
+	${RM} "$@.d"
+	$(COMPILE.cc) -g -Itest -std=c++11 `cppunit-config --cflags` -MMD -MP -MF "$@.d" -o ${TESTDIR}/tests/jsontestrunner.o tests/jsontestrunner.cpp
+
+
 ${TESTDIR}/tests/nattest.o: tests/nattest.cpp 
 	${MKDIR} -p ${TESTDIR}/tests
 	${RM} "$@.d"
@@ -188,6 +214,7 @@ ${OBJECTDIR}/src/map/natmap_nomain.o: ${OBJECTDIR}/src/map/natmap.o src/map/natm
 .test-conf:
 	@if [ "${TEST}" = "" ]; \
 	then  \
+	    ${TESTDIR}/TestFiles/f2 || true; \
 	    ${TESTDIR}/TestFiles/f1 || true; \
 	else  \
 	    ./${TEST} || true; \
@@ -196,7 +223,7 @@ ${OBJECTDIR}/src/map/natmap_nomain.o: ${OBJECTDIR}/src/map/natmap.o src/map/natm
 # Clean Targets
 .clean-conf: ${CLEAN_SUBPROJECTS}
 	${RM} -r ${CND_BUILDDIR}/${CND_CONF}
-	${RM} ${CND_DISTDIR}/${CND_CONF}/${CND_PLATFORM}/1t1nat
+	${RM} ${CND_DISTDIR}/${CND_CONF}/${CND_PLATFORM}/121nat
 
 # Subprojects
 .clean-subprojects:
diff --git a/nbproject/Makefile-impl.mk b/nbproject/Makefile-impl.mk
index 69be870..9fdd9a2 100644
--- a/nbproject/Makefile-impl.mk
+++ b/nbproject/Makefile-impl.mk
@@ -24,7 +24,7 @@ CLEAN_SUBPROJECTS=${CLEAN_SUBPROJECTS_${SUBPROJECTS}}
 
 
 # Project Name
-PROJECTNAME=1T1NAT
+PROJECTNAME=121Nat
 
 # Active Configuration
 DEFAULTCONF=Debug
@@ -76,7 +76,7 @@ ALLCONFS=Debug Release Unitest
 .depcheck-impl:
 	@echo "# This code depends on make tool being used" >.dep.inc
 	@if [ -n "${MAKE_VERSION}" ]; then \
-	    echo "DEPFILES=\$$(wildcard \$$(addsuffix .d, \$${OBJECTFILES}))" >>.dep.inc; \
+	    echo "DEPFILES=\$$(wildcard \$$(addsuffix .d, \$${OBJECTFILES} \$${TESTOBJECTFILES}))" >>.dep.inc; \
 	    echo "ifneq (\$${DEPFILES},)" >>.dep.inc; \
 	    echo "include \$${DEPFILES}" >>.dep.inc; \
 	    echo "endif" >>.dep.inc; \
diff --git a/nbproject/Makefile-variables.mk b/nbproject/Makefile-variables.mk
index 82ad315..22b2158 100644
--- a/nbproject/Makefile-variables.mk
+++ b/nbproject/Makefile-variables.mk
@@ -7,29 +7,29 @@ CND_BASEDIR=`pwd`
 CND_BUILDDIR=build
 CND_DISTDIR=dist
 # Debug configuration
-CND_PLATFORM_Debug=GNU-Linux-x86
-CND_ARTIFACT_DIR_Debug=dist/Debug/GNU-Linux-x86
-CND_ARTIFACT_NAME_Debug=1t1nat
-CND_ARTIFACT_PATH_Debug=dist/Debug/GNU-Linux-x86/1t1nat
-CND_PACKAGE_DIR_Debug=dist/Debug/GNU-Linux-x86/package
-CND_PACKAGE_NAME_Debug=1t1nat.tar
-CND_PACKAGE_PATH_Debug=dist/Debug/GNU-Linux-x86/package/1t1nat.tar
+CND_PLATFORM_Debug=GNU-Linux
+CND_ARTIFACT_DIR_Debug=dist/Debug/GNU-Linux
+CND_ARTIFACT_NAME_Debug=121nat
+CND_ARTIFACT_PATH_Debug=dist/Debug/GNU-Linux/121nat
+CND_PACKAGE_DIR_Debug=dist/Debug/GNU-Linux/package
+CND_PACKAGE_NAME_Debug=121nat.tar
+CND_PACKAGE_PATH_Debug=dist/Debug/GNU-Linux/package/121nat.tar
 # Release configuration
-CND_PLATFORM_Release=GNU-Linux-x86
-CND_ARTIFACT_DIR_Release=dist/Release/GNU-Linux-x86
-CND_ARTIFACT_NAME_Release=1t1nat
-CND_ARTIFACT_PATH_Release=dist/Release/GNU-Linux-x86/1t1nat
-CND_PACKAGE_DIR_Release=dist/Release/GNU-Linux-x86/package
-CND_PACKAGE_NAME_Release=1t1nat.tar
-CND_PACKAGE_PATH_Release=dist/Release/GNU-Linux-x86/package/1t1nat.tar
+CND_PLATFORM_Release=GNU-Linux
+CND_ARTIFACT_DIR_Release=dist/Release/GNU-Linux
+CND_ARTIFACT_NAME_Release=121nat
+CND_ARTIFACT_PATH_Release=dist/Release/GNU-Linux/121nat
+CND_PACKAGE_DIR_Release=dist/Release/GNU-Linux/package
+CND_PACKAGE_NAME_Release=121nat.tar
+CND_PACKAGE_PATH_Release=dist/Release/GNU-Linux/package/121nat.tar
 # Unitest configuration
-CND_PLATFORM_Unitest=GNU-Linux-x86
-CND_ARTIFACT_DIR_Unitest=dist/Unitest/GNU-Linux-x86
-CND_ARTIFACT_NAME_Unitest=1t1nat
-CND_ARTIFACT_PATH_Unitest=dist/Unitest/GNU-Linux-x86/1t1nat
-CND_PACKAGE_DIR_Unitest=dist/Unitest/GNU-Linux-x86/package
-CND_PACKAGE_NAME_Unitest=1t1nat.tar
-CND_PACKAGE_PATH_Unitest=dist/Unitest/GNU-Linux-x86/package/1t1nat.tar
+CND_PLATFORM_Unitest=GNU-Linux
+CND_ARTIFACT_DIR_Unitest=dist/Unitest/GNU-Linux
+CND_ARTIFACT_NAME_Unitest=121nat
+CND_ARTIFACT_PATH_Unitest=dist/Unitest/GNU-Linux/121nat
+CND_PACKAGE_DIR_Unitest=dist/Unitest/GNU-Linux/package
+CND_PACKAGE_NAME_Unitest=121nat.tar
+CND_PACKAGE_PATH_Unitest=dist/Unitest/GNU-Linux/package/121nat.tar
 #
 # include compiler specific variables
 #
diff --git a/nbproject/Package-Debug.bash b/nbproject/Package-Debug.bash
index cf4e434..70bd631 100644
--- a/nbproject/Package-Debug.bash
+++ b/nbproject/Package-Debug.bash
@@ -6,16 +6,16 @@
 
 # Macros
 TOP=`pwd`
-CND_PLATFORM=GNU-Linux-x86
+CND_PLATFORM=GNU-Linux
 CND_CONF=Debug
 CND_DISTDIR=dist
 CND_BUILDDIR=build
 CND_DLIB_EXT=so
 NBTMPDIR=${CND_BUILDDIR}/${CND_CONF}/${CND_PLATFORM}/tmp-packaging
 TMPDIRNAME=tmp-packaging
-OUTPUT_PATH=${CND_DISTDIR}/${CND_CONF}/${CND_PLATFORM}/1t1nat
-OUTPUT_BASENAME=1t1nat
-PACKAGE_TOP_DIR=1t1nat/
+OUTPUT_PATH=${CND_DISTDIR}/${CND_CONF}/${CND_PLATFORM}/121nat
+OUTPUT_BASENAME=121nat
+PACKAGE_TOP_DIR=121nat/
 
 # Functions
 function checkReturnCode
@@ -60,15 +60,15 @@ mkdir -p ${NBTMPDIR}
 
 # Copy files and create directories and links
 cd "${TOP}"
-makeDirectory "${NBTMPDIR}/1t1nat/bin"
+makeDirectory "${NBTMPDIR}/121nat/bin"
 copyFileToTmpDir "${OUTPUT_PATH}" "${NBTMPDIR}/${PACKAGE_TOP_DIR}bin/${OUTPUT_BASENAME}" 0755
 
 
 # Generate tar file
 cd "${TOP}"
-rm -f ${CND_DISTDIR}/${CND_CONF}/${CND_PLATFORM}/package/1t1nat.tar
+rm -f ${CND_DISTDIR}/${CND_CONF}/${CND_PLATFORM}/package/121nat.tar
 cd ${NBTMPDIR}
-tar -vcf ../../../../${CND_DISTDIR}/${CND_CONF}/${CND_PLATFORM}/package/1t1nat.tar *
+tar -vcf ../../../../${CND_DISTDIR}/${CND_CONF}/${CND_PLATFORM}/package/121nat.tar *
 checkReturnCode
 
 # Cleanup
diff --git a/nbproject/Package-Release.bash b/nbproject/Package-Release.bash
index d3456b5..6517dc1 100644
--- a/nbproject/Package-Release.bash
+++ b/nbproject/Package-Release.bash
@@ -6,16 +6,16 @@
 
 # Macros
 TOP=`pwd`
-CND_PLATFORM=GNU-Linux-x86
+CND_PLATFORM=GNU-Linux
 CND_CONF=Release
 CND_DISTDIR=dist
 CND_BUILDDIR=build
 CND_DLIB_EXT=so
 NBTMPDIR=${CND_BUILDDIR}/${CND_CONF}/${CND_PLATFORM}/tmp-packaging
 TMPDIRNAME=tmp-packaging
-OUTPUT_PATH=${CND_DISTDIR}/${CND_CONF}/${CND_PLATFORM}/1t1nat
-OUTPUT_BASENAME=1t1nat
-PACKAGE_TOP_DIR=1t1nat/
+OUTPUT_PATH=${CND_DISTDIR}/${CND_CONF}/${CND_PLATFORM}/121nat
+OUTPUT_BASENAME=121nat
+PACKAGE_TOP_DIR=121nat/
 
 # Functions
 function checkReturnCode
@@ -60,15 +60,15 @@ mkdir -p ${NBTMPDIR}
 
 # Copy files and create directories and links
 cd "${TOP}"
-makeDirectory "${NBTMPDIR}/1t1nat/bin"
+makeDirectory "${NBTMPDIR}/121nat/bin"
 copyFileToTmpDir "${OUTPUT_PATH}" "${NBTMPDIR}/${PACKAGE_TOP_DIR}bin/${OUTPUT_BASENAME}" 0755
 
 
 # Generate tar file
 cd "${TOP}"
-rm -f ${CND_DISTDIR}/${CND_CONF}/${CND_PLATFORM}/package/1t1nat.tar
+rm -f ${CND_DISTDIR}/${CND_CONF}/${CND_PLATFORM}/package/121nat.tar
 cd ${NBTMPDIR}
-tar -vcf ../../../../${CND_DISTDIR}/${CND_CONF}/${CND_PLATFORM}/package/1t1nat.tar *
+tar -vcf ../../../../${CND_DISTDIR}/${CND_CONF}/${CND_PLATFORM}/package/121nat.tar *
 checkReturnCode
 
 # Cleanup
diff --git a/nbproject/Package-Unitest.bash b/nbproject/Package-Unitest.bash
index 5a4cfdd..ea596c1 100644
--- a/nbproject/Package-Unitest.bash
+++ b/nbproject/Package-Unitest.bash
@@ -6,16 +6,16 @@
 
 # Macros
 TOP=`pwd`
-CND_PLATFORM=GNU-Linux-x86
+CND_PLATFORM=GNU-Linux
 CND_CONF=Unitest
 CND_DISTDIR=dist
 CND_BUILDDIR=build
 CND_DLIB_EXT=so
 NBTMPDIR=${CND_BUILDDIR}/${CND_CONF}/${CND_PLATFORM}/tmp-packaging
 TMPDIRNAME=tmp-packaging
-OUTPUT_PATH=${CND_DISTDIR}/${CND_CONF}/${CND_PLATFORM}/1t1nat
-OUTPUT_BASENAME=1t1nat
-PACKAGE_TOP_DIR=1t1nat/
+OUTPUT_PATH=${CND_DISTDIR}/${CND_CONF}/${CND_PLATFORM}/121nat
+OUTPUT_BASENAME=121nat
+PACKAGE_TOP_DIR=121nat/
 
 # Functions
 function checkReturnCode
@@ -60,15 +60,15 @@ mkdir -p ${NBTMPDIR}
 
 # Copy files and create directories and links
 cd "${TOP}"
-makeDirectory "${NBTMPDIR}/1t1nat/bin"
+makeDirectory "${NBTMPDIR}/121nat/bin"
 copyFileToTmpDir "${OUTPUT_PATH}" "${NBTMPDIR}/${PACKAGE_TOP_DIR}bin/${OUTPUT_BASENAME}" 0755
 
 
 # Generate tar file
 cd "${TOP}"
-rm -f ${CND_DISTDIR}/${CND_CONF}/${CND_PLATFORM}/package/1t1nat.tar
+rm -f ${CND_DISTDIR}/${CND_CONF}/${CND_PLATFORM}/package/121nat.tar
 cd ${NBTMPDIR}
-tar -vcf ../../../../${CND_DISTDIR}/${CND_CONF}/${CND_PLATFORM}/package/1t1nat.tar *
+tar -vcf ../../../../${CND_DISTDIR}/${CND_CONF}/${CND_PLATFORM}/package/121nat.tar *
 checkReturnCode
 
 # Cleanup
diff --git a/nbproject/configurations.xml b/nbproject/configurations.xml
index ab6086a..3a62e2c 100644
--- a/nbproject/configurations.xml
+++ b/nbproject/configurations.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<configurationDescriptor version="95">
+<configurationDescriptor version="97">
   <logicalFolder name="root" displayName="root" projectFiles="true" kind="ROOT">
     <logicalFolder name="HeaderFiles"
                    displayName="Header Files"
@@ -14,6 +14,7 @@
     <logicalFolder name="ResourceFiles"
                    displayName="Resource Files"
                    projectFiles="true">
+      <itemPath>src/config.json</itemPath>
     </logicalFolder>
     <logicalFolder name="SourceFiles"
                    displayName="Source Files"
@@ -30,6 +31,11 @@
                    displayName="Test Files"
                    projectFiles="false"
                    kind="TEST_LOGICAL_FOLDER">
+      <logicalFolder name="f2" displayName="JsonTest" projectFiles="true" kind="TEST">
+        <itemPath>tests/jsontest.cpp</itemPath>
+        <itemPath>tests/jsontest.h</itemPath>
+        <itemPath>tests/jsontestrunner.cpp</itemPath>
+      </logicalFolder>
       <logicalFolder name="f1" displayName="nattest" projectFiles="true" kind="TEST">
         <itemPath>tests/nattest.cpp</itemPath>
         <itemPath>tests/nattest.h</itemPath>
@@ -60,6 +66,7 @@
           <linkerLibItems>
             <linkerLibLibItem>tins</linkerLibLibItem>
             <linkerLibLibItem>pthread</linkerLibLibItem>
+            <linkerOptionItem>`pkg-config --libs jsoncpp`</linkerOptionItem>
           </linkerLibItems>
         </linkerTool>
       </compileType>
@@ -83,6 +90,20 @@
           </linkerLibItems>
         </linkerTool>
       </folder>
+      <folder path="TestFiles/f2">
+        <cTool>
+          <commandLine>`cppunit-config --cflags`</commandLine>
+        </cTool>
+        <ccTool>
+          <commandLine>`cppunit-config --cflags`</commandLine>
+        </ccTool>
+        <linkerTool>
+          <output>${TESTDIR}/TestFiles/f2</output>
+          <linkerLibItems>
+            <linkerOptionItem>`cppunit-config --libs`</linkerOptionItem>
+          </linkerLibItems>
+        </linkerTool>
+      </folder>
       <item path="src/PduSender.cpp" ex="false" tool="1" flavor2="0">
       </item>
       <item path="src/PduSender.h" ex="false" tool="3" flavor2="0">
@@ -91,6 +112,8 @@
       </item>
       <item path="src/PduSniffer.h" ex="false" tool="3" flavor2="0">
       </item>
+      <item path="src/config.json" ex="false" tool="3" flavor2="0">
+      </item>
       <item path="src/main.cpp" ex="false" tool="1" flavor2="0">
       </item>
       <item path="src/map/NatRange.cpp" ex="false" tool="1" flavor2="0">
@@ -101,6 +124,12 @@
       </item>
       <item path="src/map/natmap.h" ex="false" tool="3" flavor2="0">
       </item>
+      <item path="tests/jsontest.cpp" ex="false" tool="1" flavor2="0">
+      </item>
+      <item path="tests/jsontest.h" ex="false" tool="3" flavor2="0">
+      </item>
+      <item path="tests/jsontestrunner.cpp" ex="false" tool="1" flavor2="0">
+      </item>
       <item path="tests/nattest.cpp" ex="false" tool="1" flavor2="0">
       </item>
       <item path="tests/nattest.h" ex="false" tool="3" flavor2="0">
@@ -148,6 +177,20 @@
           </linkerLibItems>
         </linkerTool>
       </folder>
+      <folder path="TestFiles/f2">
+        <cTool>
+          <commandLine>`cppunit-config --cflags`</commandLine>
+        </cTool>
+        <ccTool>
+          <commandLine>`cppunit-config --cflags`</commandLine>
+        </ccTool>
+        <linkerTool>
+          <output>${TESTDIR}/TestFiles/f2</output>
+          <linkerLibItems>
+            <linkerOptionItem>`cppunit-config --libs`</linkerOptionItem>
+          </linkerLibItems>
+        </linkerTool>
+      </folder>
       <item path="src/PduSender.cpp" ex="false" tool="1" flavor2="0">
       </item>
       <item path="src/PduSender.h" ex="false" tool="3" flavor2="0">
@@ -156,6 +199,8 @@
       </item>
       <item path="src/PduSniffer.h" ex="false" tool="3" flavor2="0">
       </item>
+      <item path="src/config.json" ex="false" tool="3" flavor2="0">
+      </item>
       <item path="src/main.cpp" ex="false" tool="1" flavor2="0">
       </item>
       <item path="src/map/NatRange.cpp" ex="false" tool="1" flavor2="0">
@@ -166,6 +211,12 @@
       </item>
       <item path="src/map/natmap.h" ex="false" tool="3" flavor2="0">
       </item>
+      <item path="tests/jsontest.cpp" ex="false" tool="1" flavor2="0">
+      </item>
+      <item path="tests/jsontest.h" ex="false" tool="3" flavor2="0">
+      </item>
+      <item path="tests/jsontestrunner.cpp" ex="false" tool="1" flavor2="0">
+      </item>
       <item path="tests/nattest.cpp" ex="false" tool="1" flavor2="0">
       </item>
       <item path="tests/nattest.h" ex="false" tool="3" flavor2="0">
@@ -207,6 +258,20 @@
           </linkerLibItems>
         </linkerTool>
       </folder>
+      <folder path="TestFiles/f2">
+        <cTool>
+          <commandLine>`cppunit-config --cflags`</commandLine>
+        </cTool>
+        <ccTool>
+          <commandLine>`cppunit-config --cflags`</commandLine>
+        </ccTool>
+        <linkerTool>
+          <output>${TESTDIR}/TestFiles/f2</output>
+          <linkerLibItems>
+            <linkerOptionItem>`cppunit-config --libs`</linkerOptionItem>
+          </linkerLibItems>
+        </linkerTool>
+      </folder>
       <item path="src/PduSender.cpp" ex="false" tool="1" flavor2="0">
       </item>
       <item path="src/PduSender.h" ex="false" tool="3" flavor2="0">
@@ -215,6 +280,8 @@
       </item>
       <item path="src/PduSniffer.h" ex="false" tool="3" flavor2="0">
       </item>
+      <item path="src/config.json" ex="false" tool="3" flavor2="0">
+      </item>
       <item path="src/main.cpp" ex="false" tool="1" flavor2="0">
       </item>
       <item path="src/map/NatRange.cpp" ex="false" tool="1" flavor2="0">
@@ -225,6 +292,12 @@
       </item>
       <item path="src/map/natmap.h" ex="false" tool="3" flavor2="0">
       </item>
+      <item path="tests/jsontest.cpp" ex="false" tool="1" flavor2="0">
+      </item>
+      <item path="tests/jsontest.h" ex="false" tool="3" flavor2="0">
+      </item>
+      <item path="tests/jsontestrunner.cpp" ex="false" tool="1" flavor2="0">
+      </item>
       <item path="tests/nattest.cpp" ex="false" tool="1" flavor2="0">
       </item>
       <item path="tests/nattest.h" ex="false" tool="3" flavor2="0">
diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
new file mode 100644
index 0000000..cfc8b08
--- /dev/null
+++ b/src/CMakeLists.txt
@@ -0,0 +1,8 @@
+file(GLOB_RECURSE 121Nat_Src_Files "*.h" "*.cpp")
+add_executable(121Nat ${121Nat_Src_Files})
+target_link_libraries (121Nat tins pthread jsoncpp)
+target_compile_features(121Nat PRIVATE cxx_range_for)
+install(TARGETS 121Nat
+        RUNTIME DESTINATION bin
+)
+
diff --git a/src/config.json b/src/config.json
new file mode 100644
index 0000000..919d942
--- /dev/null
+++ b/src/config.json
@@ -0,0 +1,12 @@
+[{
+        "vboxnet0": {
+            "rangeIpAddr": "10.0.0.0",
+            "rangeNetmask": "255.255.240.0"
+        }
+    }, {
+        "vboxnet1": {
+            "rangeIpAddr": "172.27.0.0",
+            "rangeNetmask": "255.255.0.0"
+        }
+    }]
+
diff --git a/src/main.cpp b/src/main.cpp
index 61ac28c..df627a5 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -4,27 +4,42 @@
 #include "map/natmap.h"
 #include "PduSniffer.h"
 #include "PduSender.h"
-
-int main()
+#include <json/json.h>
+#include <json/value.h>
+#include <fstream>
+int main(int argc, char** argv)
 {
-    Tins::NetworkInterface net1("vboxnet0");
-    Tins::NetworkInterface net2("vboxnet1");
-    otonat::NatRange range1(net1, "10.0.0.0", "255.255.240.0");
-    otonat::NatRange range2(net2, "172.27.0.0", "255.255.0.0");
+    if (argc < 2){
+        return 0;
+    }
+    
     otonat::NatMap::NatRangeList list;
-    list.push_back(range1);
-    list.push_back(range2);
+    std::ifstream config_doc(argv[1], std::ifstream::binary);
+    Json::Value root;
+    config_doc >> root;
+    const Json::Value netcards = root;
+    for (Json::Value netcard : netcards) {
+        const std::string name = netcard.getMemberNames()[0].c_str();
+        const Json::Value cardMember = netcard[name];
+        const std::string ipStr = cardMember["rangeIpAddr"].asString();
+        const std::string maskStr = cardMember["rangeNetmask"].asString();
+
+        const Tins::NetworkInterface net(name);
+        const otonat::NatRange netRange(net, Tins::IPv4Address(ipStr), Tins::IPv4Address(maskStr));
+        list.push_back(netRange);
+    }
+    
     otonat::NatMap natMap = otonat::NatMap(list);
     otonat::PduSniffer sniffer(&natMap);
     otonat::PduSender sender(&natMap);
     std::thread * mapThread = natMap.translateThread();
     std::thread * senderThread = sender.SendPdusFromQueueThread();
-    std::thread * snifferThread1 = sniffer.SniffInterfaceInNewThread(net1);
-    std::thread * snifferThread2 = sniffer.SniffInterfaceInNewThread(net2);
+    for (otonat::NatRange & net : list) {
+        sniffer.SniffInterfaceInNewThread(net.interface);
+    }
+    
     mapThread->join();
     senderThread->join();
-    snifferThread1->join();
-    snifferThread2->join();
     return 0;
 }
 
diff --git a/tests/jsontest.cpp b/tests/jsontest.cpp
new file mode 100644
index 0000000..6e4decc
--- /dev/null
+++ b/tests/jsontest.cpp
@@ -0,0 +1,58 @@
+/*
+ * To change this license header, choose License Headers in Project Properties.
+ * To change this template file, choose Tools | Templates
+ * and open the template in the editor.
+ */
+
+/*
+ * File:   jsontest.cpp
+ * Author: dev
+ *
+ * Created on 18.11.2015, 20:41:37
+ */
+
+#include "jsontest.h"
+#include <json/json.h>
+#include <json/value.h>
+#include <fstream>
+#include <iostream>
+#include <string.h>
+#include "../src/map/NatRange.h"
+#include <tins/tins.h>
+CPPUNIT_TEST_SUITE_REGISTRATION(jsontest);
+
+jsontest::jsontest() {
+}
+
+jsontest::~jsontest() {
+}
+
+void jsontest::setUp() {
+}
+
+void jsontest::tearDown() {
+}
+
+void jsontest::testReadConfig() {
+    std::ifstream config_doc("src/config.json", std::ifstream::binary);
+    Json::Value root;
+    config_doc >> root;
+    const Json::Value netcards = root;
+    for (Json::Value netcard : netcards) {
+        const std::string name = netcard.getMemberNames()[0].c_str();
+        const Json::Value cardMember = netcard[name];
+        const std::string ipStr = cardMember["rangeIpAddr"].asString();
+        const std::string maskStr = cardMember["rangeNetmask"].asString();
+        CPPUNIT_ASSERT(name == "vboxnet0" || name == "vboxnet1");
+        CPPUNIT_ASSERT(ipStr == "10.0.0.0" || ipStr == "172.27.0.0");
+        CPPUNIT_ASSERT(maskStr == "255.255.240.0" || maskStr == "255.255.0.0");
+        const Tins::NetworkInterface net(name);
+        const otonat::NatRange netRange(net, Tins::IPv4Address(ipStr), Tins::IPv4Address(maskStr));
+        CPPUNIT_ASSERT(name ==  netRange.interface.name());
+        CPPUNIT_ASSERT(ipStr == netRange.rangeIpAddr.to_string());
+        CPPUNIT_ASSERT(maskStr == netRange.rangeNetmask.to_string());
+    }
+
+}
+
+
diff --git a/tests/jsontest.h b/tests/jsontest.h
new file mode 100644
index 0000000..9a9f154
--- /dev/null
+++ b/tests/jsontest.h
@@ -0,0 +1,37 @@
+/*
+ * To change this license header, choose License Headers in Project Properties.
+ * To change this template file, choose Tools | Templates
+ * and open the template in the editor.
+ */
+
+/*
+ * File:   jsontest.h
+ * Author: dev
+ *
+ * Created on 18.11.2015, 20:41:37
+ */
+
+#ifndef JSONTEST_H
+#define JSONTEST_H
+
+#include <cppunit/extensions/HelperMacros.h>
+
+class jsontest : public CPPUNIT_NS::TestFixture {
+    CPPUNIT_TEST_SUITE(jsontest);
+
+    CPPUNIT_TEST(testReadConfig);
+    CPPUNIT_TEST_SUITE_END();
+
+public:
+    jsontest();
+    virtual ~jsontest();
+    void setUp();
+    void tearDown();
+
+private:
+    void testReadConfig();
+
+};
+
+#endif /* JSONTEST_H */
+
diff --git a/tests/jsontestrunner.cpp b/tests/jsontestrunner.cpp
new file mode 100644
index 0000000..47a8ce0
--- /dev/null
+++ b/tests/jsontestrunner.cpp
@@ -0,0 +1,89 @@
+/*
+ * To change this license header, choose License Headers in Project Properties.
+ * To change this template file, choose Tools | Templates
+ * and open the template in the editor.
+ */
+
+/* 
+ * File:   newtestrunner.cpp
+ * Author: dev
+ * 
+ * Created on 18.11.2015, 20:41:38
+ */
+
+// CppUnit site http://sourceforge.net/projects/cppunit/files
+
+#include <cppunit/BriefTestProgressListener.h>
+#include <cppunit/CompilerOutputter.h>
+#include <cppunit/extensions/TestFactoryRegistry.h>
+#include <cppunit/TestResult.h>
+#include <cppunit/TestResultCollector.h>
+#include <cppunit/TestRunner.h>
+
+#include <cppunit/Test.h>
+#include <cppunit/TestFailure.h>
+#include <cppunit/portability/Stream.h>
+
+class ProgressListener : public CPPUNIT_NS::TestListener {
+public:
+
+    ProgressListener()
+    : m_lastTestFailed(false) {
+    }
+
+    ~ProgressListener() {
+    }
+
+    void startTest(CPPUNIT_NS::Test *test) {
+        CPPUNIT_NS::stdCOut() << test->getName();
+        CPPUNIT_NS::stdCOut() << "\n";
+        CPPUNIT_NS::stdCOut().flush();
+
+        m_lastTestFailed = false;
+    }
+
+    void addFailure(const CPPUNIT_NS::TestFailure &failure) {
+        CPPUNIT_NS::stdCOut() << " : " << (failure.isError() ? "error" : "assertion");
+        m_lastTestFailed = true;
+    }
+
+    void endTest(CPPUNIT_NS::Test *test) {
+        if (!m_lastTestFailed)
+            CPPUNIT_NS::stdCOut() << " : OK";
+        CPPUNIT_NS::stdCOut() << "\n";
+    }
+
+private:
+    /// Prevents the use of the copy constructor.
+    ProgressListener(const ProgressListener &copy);
+
+    /// Prevents the use of the copy operator.
+    void operator=(const ProgressListener &copy);
+
+private:
+    bool m_lastTestFailed;
+};
+
+int main() {
+    // Create the event manager and test controller
+    CPPUNIT_NS::TestResult controller;
+
+    // Add a listener that colllects test result
+    CPPUNIT_NS::TestResultCollector result;
+    controller.addListener(&result);
+
+    // Add a listener that print dots as test run.
+    ProgressListener progress;
+    controller.addListener(&progress);
+
+    // Add the top suite to the test runner
+    CPPUNIT_NS::TestRunner runner;
+    runner.addTest(CPPUNIT_NS::TestFactoryRegistry::getRegistry().makeTest());
+    runner.run(controller);
+
+    // Print test in a compiler compatible format.
+    CPPUNIT_NS::CompilerOutputter outputter(&result, CPPUNIT_NS::stdCOut());
+    outputter.write();
+
+    return result.wasSuccessful() ? 0 : 1;
+}