Index: trunk/BNC/txt/frankfurt.tex
===================================================================
--- trunk/BNC/txt/frankfurt.tex	(revision 5621)
+++ trunk/BNC/txt/frankfurt.tex	(revision 5622)
@@ -535,4 +535,31 @@
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 
+\begin{frame}
+\frametitle{PPP -- Server-Side}
+  \begin{center}
+    \includegraphics[width=0.9\textwidth,angle=0]{tropo1.png}
+  \end{center}
+\end{frame}
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+\begin{frame}
+\frametitle{PPP -- Server-Side}
+  \begin{center}
+    \includegraphics[width=0.9\textwidth,angle=0]{tropo2.png}
+  \end{center}
+\end{frame}
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+\begin{frame}
+\frametitle{PPP -- Server-Side}
+  \begin{center}
+    \includegraphics[width=0.9\textwidth,angle=0]{tropo3.png}
+  \end{center}
+\end{frame}
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
 \section{PPP AR}
 \subsection{Principles}