Hi, Header IPv6 in Portuguese

[ronyjah]

\begin{figure}[h!]
\begin{center}
\caption{Cabeçalho IPv6 \label{fig_hipv6}}
\begin{tikzpicture}[scale=0.45]
\foreach \x in {0,...,31}
\node at (\x+0.5,20.5) {\scriptsize \x};
\foreach \x in {0,...,31}
\node at (\x+0.5,9.5) {\scriptsize \x};
\foreach \x in {0,...,32}
\draw[thick, blue] (\x,9) -- (\x,21);
\node[thick] (bit1) at (-0.5,20.5) {\scriptsize bit};
\node[thick] (bit2) at (-0.5,9.5) {\scriptsize bit};
\draw [<->, thick] (-0.5, 19.9) -- (-0.5,10.1);
\draw [thick] (-1, 20) -- (-0.1,20);
\draw [thick] (-1, 10) -- (-0.1,10);
\node[fill=white] at (-1.1,15) {\tiny 40 bytes};
\filldraw[thick,draw=black, fill=white] (0,20) rectangle (4,19); \node (mode) at (2,19.5) {\scriptsize Versão};
\filldraw[thick,draw=black, fill=white] (4,20) rectangle (12,19); \node (mode) at (8,19.5) {\scriptsize Classe do tráfego};
\filldraw[thick,draw=black, fill=white] (12,20) rectangle (32,19); \node (mode) at (22,19.5) {\scriptsize Identificador do fluxo};
\filldraw[thick,draw=black, fill=white] (0,19) rectangle (16,18); \node (mode) at (8,18.5) {\scriptsize Comprimento do \textit{payload}};
\filldraw[thick,draw=black, fill=white] (16,19) rectangle (24,18); \node (mode) at (20,18.5) {\scriptsize Próximo cabeçalho};
\filldraw[thick,draw=black, fill=white] (24,19) rectangle (32,18); \node (mode) at (28,18.5) {\scriptsize Limite de Hop};
\filldraw[thick,draw=black, fill=white] (0,18) rectangle (32,14); \node (mode) at (16,16) {\scriptsize Endereço IP de origem};
\filldraw[thick,draw=black, fill=white] (0,14) rectangle (32,10); \node (mode) at (16,12) {\scriptsize Endereço IP de destino};

\end{tikzpicture}
\captionof*{figure}{Fonte:  \citeonline{tikzrepo}}
\end{center}

\end{figure}