FTP 425 Error - Unable to Open Data Connection

Technote (troubleshooting)


Problem(Abstract)

A user is able to successfully FTP to the IBM® System i® products from a PC; however, the user is unable to open a data connection. The user is unable to use the commands dir, put, get, and so on.

Resolving the problem

Any data connection type command (dir, put, get, and so on) fails with an FTP 425 message. The Microsoft® Windows® XP operating system on the PC is implementing a PC side firewall that restricts port 20 for the data connection. Ending and removing the PC side firewall resolves the issue.

Historical Number

390472854

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Document information


More support for:

IBM i
Communications-TCP

Software version:

5.1.0, 5.2.0, 5.3.0, 5.3.5, 5.4.0, 5.4.5, 6.1.0

Operating system(s):

IBM i

Reference #:

N1015383

Modified date:

2012-08-18

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