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\title{The tftp URL Scheme}
\author{Schulzrinne}
\shorttitle{tftp URL}
\filename{draft-schulzrinne-tftp-url-01}
\wg{}
\expires{June 2002}
\address{Columbia U.}
\pubdate{\today}
%\input{rfc}
\input{../defs}

\begin{document}
\maketitle
\begin{abstract}
This document defines the tftp URL according to the rules in RFC 2717.
\end{abstract}

\section{URL Scheme Name}

The scheme name is ``tftp''.

\section{URL Scheme Syntax}

The TFTP URL scheme is used to designate files and directories on
Internet hosts accessible using the TFTP protocol \cite{rfc1350}.

TFTP URLs follow the common Internet scheme syntax described in Section
3.1 of RFC 1738 \cite{rfc1738}.  If ``:$<$port$>$'' is omitted, the port
defaults to 69. The ``user'' and ``password'' components {\MUSTNOT} be
used. No relative forms are supported.

An example of a TFTP URL is
\begin{verbatim}
  tftp://tftp.example.com/directory/file.txt
\end{verbatim}

\section{Character Encoding Considerations}

RFC 1350 only allows file names consisting of ``netascii'' characters
\cite{rfc764}. The host part of the URL has the same encoding
considerations as described in RFC 1738 \cite{rfc1738}.

\section{Intended Usage}

The file identified is retrieved (read) from the host and file name
specified in the URL, using TFTP read requests (RRQ).

\section{Protocols which Use This URL Scheme Name}

TFTP (STD 33, RFC 1350 \cite{rfc1350})

\section{Interoperability considerations}

TFTP mail mode and Netascii modes are not supported. (RFC 1350 states
that ``mail mode is obsolete and should not be implemented or used.'')

\section{Security Considerations}

The security considerations of RFC 1350 \cite{rfc1350} apply.  This
scheme is suitable only for files that are considered public, similar to
anonymous ftp or public HTTP objects.  [TBD:  Explain any differences to
anon.  ftp.] For security reasons, this URL does not support the TFTP
WRQ (write) mode.

\section{Author Address}

\begin{flushleft}
Henning Schulzrinne\\
Dept. of Computer Science\\
Columbia University\\
1214 Amsterdam Avenue\\
New York, NY 10027\\
USA\\
electronic mail: {\sf schulzrinne@cs.columbia.edu}
\end{flushleft}

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\input{../copyright}
\end{document}
