Hi, We had a similar issue just a few weeks back. Our customer outsource thier firewall to thier ISP and we use NAT for our server. Switching to passive mode solved our problem as the server "hands control" over to the client meaning the client initiates the data session on a not well known port # returned by the server. Stateful firewalls then sees the session as being initiated by an internal client.
Another item we had to overcome at a different client's network is NAV Internet Gateway software. We switched to binary mode to overcome this one. NAV did not like the padding that occurs with other ftp modes. Hope this helps, Paul Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=61690&t=61549 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]