Clay, Also do you have physical connectivity, i.e.; can you ping the origin and Destination of the FTP ? Are they any firewalls between ? These can spell trouble unless you have a rule in place...Can you telnet into the ftp receiving site ???
Regards, Scott Ford Senior Systems Engineer | Forging Enterprise Identity | IdentityForge.com (Main) 678.266.3399 x304 | (Cell) 609.346.0399 | (Fax) 678.266.3399 [EMAIL PROTECTED] This message is for the designated recipient only and may contain priviledged, proprietary, or otherwise private information. If you have received it in error, please notify the sender immediately and then delete the original. Any other use of the email by you is prohibited. -----Original Message----- From: IBM Mainframe Discussion List [mailto:[EMAIL PROTECTED] On Behalf Of Kenneth E Tomiak Sent: Tuesday, September 23, 2008 6:05 PM To: IBM-MAIN@BAMA.UA.EDU Subject: Re: TCP hanshake problem And the problem is? Does FTP from any other platform to z/OS work? Does the FTP client from that system to itself work? On Tue, 23 Sep 2008 14:55:12 -0500, Clay Hinzman <[EMAIL PROTECTED]> wrote: >Hello, > >I am having what appears to be a TCP handshake issue. One of our clients >recently upgraded to z/OS 1.7. Since the upgrade, we have not been able to >establish a connection for FTP's from our mainframe (z/VM TCPIP level 430). > >1) We send a SYN to open the connection. >2) We receive a SYN/ACK from the z/OS system. >3) We send a RST. > >Prior to the clients z/OS upgrade, the connection worked fine. I was wondering >if anyone may have encountered this problem before. > >Regards, >Clay > >---------------------------------------------------------------------- >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 ---------------------------------------------------------------------- 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
