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+\subsection{wireshark Protocol Analyzer}
+
+\begin{frame}{The wireshark protocol analyzer}
+\begin{itemize}
+	\item Software protocol analyzer for plethora of protocols
+	\item Portable, works on most flavors of Unix and Windows
+	\item Decode, display, search and filter packets with configurable level of detail
+	\item Over 1000 protocol decoders
+	\item Over 86000 display filters
+	\item Live capturing from many different network media
+	\item Import files from other capture programs
+	\item Used to be called ethereal, but is now called wireshark
+\item \url{http://www.wireshark.org/}
+\item \url{http://www.wireshark.org/download/docs/user-guide-a4.pdf}
+\end{itemize}
+\end{frame}
+
+\begin{frame}{The wireshark protocol analyzer}
+GSM protocol dissectors in wireshark
+\begin{itemize}
+	\item TCP/IP (transport layer for Abis/IP)
+	\item E1 Layer 2 (LAPD)
+	\item GSM Um Layer 2 (LAPDm)
+	\item GSM Layer 3 (RR, MM, CC)
+        \item A-bis Layer 3 (RSL)
+	\begin{itemize}
+		\item A-bis OML for Siemens and ip.access in OpenBSC git
+	\end{itemize}
+	\item GSMTAP pseudo-header (airprobe, OpenBTS, OsmocomBB)
+\end{itemize}
+\end{frame}
+
+%\begin{frame}<handout:0>{The wireshark protocol analyzer}
+%        Demonstration
+%\end{frame}