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To: Benjamin Lewis <blewis@vet.purdue.edu>
cc: questions@freebsd.org
Subject: Re: ftp.freebsd.org & SLiRP 
In-reply-to: Your message of "Fri, 22 Nov 1996 17:35:36 EST."
             <199611222235.RAA24066@ylana.vet.purdue.edu> 
From: David Greenman <dg@root.com>
Reply-To: dg@root.com
Date: Sat, 23 Nov 1996 01:47:28 -0800
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>Something seems to have changed with the ftp daemon at wcarchive recently.
>
>I use SLiRP to fake a ppp connection to the net, and I've begun to have 
>problems connecting to some sites, but not all.  Here are some examples of
>what happens:
>
>fetch:
>  >>Attempting to fetch from ftp://ftp.freebsd.org/pub/FreeBSD/distfiles//.
>  Syntax error, command unrecognized
>
>ncftp:
>  Logged into wcarchive.cdrom.com.
>  NcFTP 1.9.5 (October 29, 1995) by Mike Gleason, NCEMRSoft.
>  wcarchive.cdrom.com:/.16/FreeBSD/distfiles
>  ncftp>ls
>  Illegal PORT range rejected.
>  wcarchive.cdrom.com:/.16/FreeBSD/distfiles
>  ncftp> 
>
>ftp:
>  230 Guest login ok, access restrictions apply.
>  Remote system type is UNIX.
>  Using binary mode to transfer files.
>  ftp> ls
>  500 Illegal PORT range rejected.
>  425 Can't build data connection: Connection refused.
>  ftp>
>
>However, I have no trouble with many other sites, including freefall.  I 
>didn't always have this trouble, but I don't know when it started, because
>I usually use ftp just to grab the ctm deltas from freefall.
>
>Did wu-ftpd change recently? Does anyone have any other suggestions?

   We're not running the stock "wu-ftpd" on wcarchive. As for what changed, I
disabled the ability to establish data port connections to privileged ports
(ports < 1024). I guess my question is: why is slirp trying to do that?

-DG

David Greenman
Core-team/Principal Architect, The FreeBSD Project