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From "Daniel F. Savarese" <...@savarese.org>
Subject Re: FTPClient occasionally opens port to self instead of server
Date Mon, 07 Nov 2005 02:29:54 GMT

In message <20051104134312.19195@mail.digipixart.com>, "Barrie Selack" writes:
>In the ftp log (pureFTPd) it never shows a PASV command for
>24.www.xxx.yy, on for 10.2.1.10 (the local address behind a firewall). 
>
>Could it be a firewall problem (SonicWall) getting the IP wrong. I hadn't
>thought too much about that, but if it's the one rewriting the 10.2.1.10
>address to the public IP, then it may be the one with the problem. Any
>thoughts or experiences with that? The firewall is set up in one-to-one
>NAT so 10.2.1.10 -> 207.www.xxx.yy

It sounds like you've identified the source of the problem.  If the
firewall has an FTP forwarding feature, try turning it off and see if the
problem goes away.  There's no need for FTP forwarding with passive mode.

daniel


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