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FTP behind NAT fails (again)

I run an ftpserver on a winXP box on my internal network (port 8021).
Now I would like the ftp to be accessible from the Internet too.
I searched the posts and have tried alot getting it to work. People can login, but data transfer always fails.
Maybe someone can tell me how to get it to work. (exact settings for definitions and d/snat rules maybe?)
Greetz

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0 Simon Shaw over 22 years ago in reply to Simon Shaw

Weird... Using non passive mode worked [:)]

Thanks!
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0 saywhat over 22 years ago in reply to Simon Shaw

No problem.
I had gone through kind of the same thing. After reading that passive mode was supposed to be "nat friendly" I tried for days to get it to work properly. I failed miserbly and tried active and it worked so I used it ever since.
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0 motytrah over 22 years ago in reply to saywhat

So what if you're dealing with a FTP server outside your control? That is stuck with Passive.
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0 saywhat over 22 years ago in reply to motytrah

We're talking about getting a ftp server of our own to operate behind a ASL firewall. I doubt there would be many times were you can control the firewall, and not the ftp server.

If you mean trying to connect to a passive ftp server on the outside, that's not what we've been discussing so far. I personally haven't had any problems connecting to a passive ftp through my ASL. What problems are you experiencing?
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