Troubleshooting FTP Connections by Checking the TCP/IP Port Restrictions

 

Checking for TCP/IP Port Restrictions

To check for TCP/IP port restrictions for FTP:

1. Log in to the iSeries.

2. Type GO CFGTCP and press Enter.

3. Choose 4. Work with TCP/IP port restrictions.

   If there are any port restrictions on ports 20 or 21, you may have problems with FTP data transfers.

Checking for Exit Programs

Use the following steps to check for exit programs for FTP:

1. Log in to the iSeries.

2. Type WRKREGINF and press Enter.

3. Type 8 next to each of the following exit points to display any exit program information:

   QIBM_QTMF_CLIENT_REQ
   QIBM_QTMF_SERVER_REQ
   QIBM_QTMF_SVR_LOGON

   If there is an exit program shown for any of these options, you may have problems with FTP data transfers.