z/OS Communications Server: IP Messages Volume 1 (EZA)
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EZA8552I

z/OS Communications Server: IP Messages Volume 1 (EZA)
SC27-3654-00

TcpOpen error: unspecified foreign port in active open

Explanation

The host port has not been specified in your open attempt. In the case of FTP and SMTP, this error indicates that there might be a problem with the application code itself.

System action

TCPIP continues. The program halts.

Operator response

Specify a valid host port when issuing a socket request. If the error persists, verify the address with the other host's administrator. If the error occurred within the FTP or SMTP function, refer this error to the system programmer or the IBM® Software Support Center.

System programmer response

Parse the code with trace on for the application code. Look for any indications of possible errors and correct them. Recompile after any corrections are made and test the application program.

Module

various.

Procedure name

various.

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