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425 Can't open data connection


425 Can't open data connection greggstrer7
3/7/2006 3:51:26 PM
iis ftp: If I FTP my internal IP Address (192.168.9.999), I get the directory listing
as expected. However, if I FTP the external address, I get the above message.
Re: 425 Can't open data connection Chris Crowe [MVP 1997 -> 2006]
3/9/2006 12:00:00 AM
The 425 error means that the data channel is blocked or closed between you
and the server you are trying to connect to.
For Active connections open ports 20 and 21
For Passive connections open ports 21 and 1024+ (and higher)

Also, turn off command filtering on the firewall.

If you still cannot get a successful connection, check all devices that are
between the client and server to ensure that the proper ports are open (e.g.
routers).


--

Cheers

Chris Crowe [IIS MVP 1997 -> 2006]
http://blog.crowe.co.nz
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