Microsoft XP SP2 firewall rewrites the address portion of FTP PORT

From: Aladin D. (D._at_discussions.microsoft.com)
Date: 10/14/04


Date: Thu, 14 Oct 2004 06:29:09 -0700

How can I prevent the firewall from re-writing the address portion of the FTP
PORT command?

When establishing a server-to-server transfer (RFC 959 Section 5.2), the
controlling machine (my PC in this case) sends a PORT command to server B
using the IP address returned via the PASV reply from server A. The firewall
re-writes this PORT command and substitutes the PC's address instead, which
fails the transfer.



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