diff --git a/chapter/section/intervlanrouting.tex b/chapter/section/intervlanrouting.tex
index d5b0f51..4261211 100644
--- a/chapter/section/intervlanrouting.tex
+++ b/chapter/section/intervlanrouting.tex
@@ -8,7 +8,12 @@ There are different ways to go \tsq{bout} Inter-vlan routing and doing it.
     \item \textbf{Some are using:}
     \begin{enumerate}
         \item external router,
-        \item switch virtual interfaces,
-        \item routed ports.
+        \item switch virtual interfaces\footnote{\texttt{Switches interface -> Vlan interfaces}},
+        \item routed ports\footnote{\texttt{Routed interface -> Subinterfaces}}.
     \end{enumerate}
-\end{itemize}
\ No newline at end of file
+    \item \textbf{Ways to do it:}
+    \begin{enumerate}
+        \item router-on-a-stick if the network is running collapsed core or not have a distribution switch in the middle.
+        \item (...)
+    \end{enumerate}
+\end{itemize}