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Title : FTP EXTENSION ALLOWING IP FORWARDING (NATs)
Author(s) : M. Rosenau
Filename : draft-rosenau-ftp-single-port-01.txt
Pages : 7
Date : 2008-1-28
The FTP protocol [1] needs two connections. A control and a data
connection. Using networks with "port forwarding" (eg. SSH, DSL
routers, VPN etc.) there is often only the possibility for the
server to listen on only one TCP port. In such networks the
traditional FTP protocol cannot be used.
This memo describes an extension to the FTP protocol that allows the
use of FTP using only one TCP port number for both control
connections and passive-mode data connections.
The extension can also be used to use the FTP protocol over network
protocols that do not have a "port" concept (such as the NetBIOS
protocol).
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