diff --git a/doc/Makefile b/doc/Makefile
index 86acd3d..39364ee 100644
--- a/doc/Makefile
+++ b/doc/Makefile
@@ -1,7 +1,7 @@
 NOTE  = !! change the next line to fit your filename; no spaces at file name end !!
 FILE  = Thesis
 
-all:
+all: all-graphviz
 	pdflatex $(FILE)
 	bibtex $(FILE)
 	makeindex Thesis.nlo -s nomencl.ist -o Thesis.nls
diff --git a/doc/graphviz/test.dot b/doc/graphviz/test.dot
deleted file mode 100644
index 1a95a64..0000000
--- a/doc/graphviz/test.dot
+++ /dev/null
@@ -1,3 +0,0 @@
-digraph G {
-    Hello->World;
-}
diff --git a/doc/graphviz/test.png b/doc/graphviz/test.png
deleted file mode 100644
index d5342df..0000000
Binary files a/doc/graphviz/test.png and /dev/null differ
diff --git a/doc/graphviz/v6-v4-standard.dot b/doc/graphviz/v6-v4-standard.dot
new file mode 100644
index 0000000..ef83f85
--- /dev/null
+++ b/doc/graphviz/v6-v4-standard.dot
@@ -0,0 +1,22 @@
+graph G {
+    node [ shape="box"];
+
+
+    v6host [ label="IPv6 only host"];
+    v4host [ label="IPv4 only host"];
+
+    switch1 [ label="Network Switch", shape="oval" ];
+    switch2 [ label="Network Switch", shape="oval" ];
+
+    nat64gw [ label="NAT64 translator", rank=max ];
+
+
+    v6host--switch1;
+    v4host--switch2;
+
+    switch1--nat64gw;
+    switch2--nat64gw;
+
+
+
+}
diff --git a/doc/plan.org b/doc/plan.org
index c342b92..dd91997 100644
--- a/doc/plan.org
+++ b/doc/plan.org
@@ -9224,6 +9224,9 @@ nico@nsg-System:~/projects/P4-NetFPGA/contrib-projects/sume-sdnet-switch/project
 
 #+END_CENTER
 
+** graphviz:
+   - https://graphviz.gitlab.io/_pages/doc/info/shapes.html#polygon
+
 ** TODO References / Follow up
 *** TODO Board
 *** RFC 791 IPv4 https://tools.ietf.org/html/rfc791