Re: Passive Mode FTP

["Jeff Silberberg" <jsilberberg@xxxxxxxxxxxxxx>]

http://www.faqs.org/faqs/ftp-list/faq/

----- Original Message -----
From: "Joe Lewis" <joelewis@joesystems.com>
To: <midrange-l@midrange.com>
Sent: Tuesday, August 06, 2002 7:50 PM
Subject: Passive Mode FTP


> Hello all;
>
> Trying to set up a FTP from my AS/400 (v5r1) to an offsite Win2K Server
> (Wildcat! FTP Server - Version 1.443) in Passive Mode.
>
> Everything is fine until a PUT or GET is issue.  I am signed on to an IP
> address 66.xxx.yyy.zzz but the follow shows up
>
>  > put anylib/anyfile
>    227 Entering Passive Mode (192,168,254,121,4,208)
>
> NETSTAT shows the following...
>
>   Remote           Remote  Local
>   Address          Port    Port   Idle Time  State
>    66.xxx.yyy.zzz    21    6340   000:00:03  Established
>   192.168.254.121  1234    6341   000:00:01  SYN-sent
>
> For some reason, the AS/400 is trying to access address 192.168.254.121,
> which happens to be the Win2K private address on their side of thier
> Firewall/NAT.  Of course, the connection never completes and times out.
>
> Why is their private address come up and how can I get the PASV to
> complete?
>
> The Win2K server already has hundreds of other sessions a day; so, there
> is no way to get rid of passive mode.
>
> We already tried setting SENDPASV 0 to turn off passive mode, just also
> times out.
>
> Thanks for any help,
> Joe Lewis
> Director of I.T.
> I. Spiewak & Sons.
>
>
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