Date: 20 Apr 1999 10:36:03 -0000 From: Sergey <serge69@nym.alias.net> To: <freebsd-questions@FreeBSD.ORG> Subject: FTP and NATD. How it works? Message-ID: <19990420103603.31995.qmail@nym.alias.net>
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[-- Attachment #1 --] Hello! I've used Windows ftp.exe from Microsoft. It works through NATD. According to FTP spec (RFC 959) daemon should make data connection to user-DTP, but it is impossible through NAT. Isn't it? It seems that client works according to FTP spec... I've logged outgoing (command) session using tcpdump. USER sergey PASS here is my pass word PORT 192,168,1,2,12,13 NLST PORT 192,168,1,2,12,14 NLST QUIT Can someone be nice enough to explain me details. Thanks, Sergey. [-- Attachment #2 --] <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML><HEAD> <META content="text/html; charset=koi8-r" http-equiv=Content-Type> <META content="MSHTML 5.00.2314.1000" name=GENERATOR> <STYLE></STYLE> </HEAD> <BODY bgColor=#ffffff> <DIV><FONT face=Arial size=2>Hello!</FONT></DIV> <DIV> </DIV> <DIV><FONT face=Arial size=2>I've used Windows <A href="ftp://ftp.exe">ftp.exe</A>; from Microsoft. It works</FONT></DIV> <DIV><FONT face=Arial size=2>through NATD</FONT><FONT face=Arial size=2><FONT face=Arial size=2>. According to FTP spec (RFC 959) daemon</FONT></FONT></DIV> <DIV><FONT face=Arial size=2><FONT face=Arial size=2>should make data connection to user-DTP, but it is</FONT></FONT></DIV> <DIV><FONT face=Arial size=2>impossible through NAT. Isn't it?</FONT></DIV> <DIV><FONT face=Arial size=2><FONT face=Arial size=2></FONT></FONT> </DIV> <DIV><FONT face=Arial size=2>It seems that client works according to FTP spec... <DIV><FONT face=Arial size=2><FONT face=Arial size=2>I've logged outgoing (command) session using tcpdump.</FONT></FONT></DIV></FONT><FONT face=Arial size=2></DIV> <DIV> <DIV> </DIV> <DIV></FONT><FONT face=Arial size=2>USER sergey</FONT></DIV></DIV> <DIV><FONT face=Arial size=2>PASS here is my pass word</FONT></DIV> <DIV><FONT face=Arial size=2>PORT 192,168,1,2,12,13</FONT></DIV> <DIV><FONT face=Arial size=2>NLST</FONT></DIV> <DIV><FONT face=Arial size=2>PORT 192,168,1,2,12,14</FONT></DIV> <DIV><FONT face=Arial size=2>NLST</FONT></DIV> <DIV><FONT face=Arial size=2>QUIT</FONT></DIV> <DIV> </DIV> <DIV><FONT face=Arial size=2>Can someone be nice enough to explain me details.</FONT></DIV> <DIV> </DIV> <DIV><FONT face=Arial size=2>Thanks, Sergey.</FONT></DIV> <DIV> </DIV></BODY></HTML>
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