Hal, I should have read the title of your post :D. Then I'd know that you're using the z/OS server.
After establishing the FTP session, type the following SITE EPSV4 LOCSITE EPSV4 I can't guarantee that the LOCSITE command will work on the FTP client you're using. EPSV4 is the IBM keyword used to activate the EPRT and EPSV commands described in RFC 2428. In passive mode, the client will send a EPSV command to the server (rather than PASV). This is similar to the PASV command EXCEPT that the server responds with EPRT (rather than PORT), which specifies a port number ONLY. Thus, the client establishes the "data" session using the same IP address that was used to establish the FTP session (i.e. the server's NATed address). Hope that helps, Alan -----Original Message----- From: IBM Mainframe Discussion List [mailto:[email protected]] On Behalf Of Hal Merritt Sent: Wednesday, June 01, 2011 2:47 PM To: [email protected] Subject: Z/os FTP Server Configurartion One of my network guys says that some servers allow the coding of a different IP address to be used in the handshake. Normally, FTP in passive mode sends the host IP address and port number for the client to use. This is useless if there is a NAT'ing firewall in the path. My guy claims that you can change that to specify any address you want, specifically the NAT'ed address. Anyone know what he is talking about? Thanks!! NOTICE: This electronic mail message and any files transmitted with it are intended exclusively for the individual or entity to which it is addressed. The message, together with any attachment, may contain confidential and/or privileged information. Any unauthorized review, use, printing, saving, copying, disclosure or distribution is strictly prohibited. If you have received this message in error, please immediately advise the sender by reply email and delete all copies. ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html

