Last Modified: Oct 16, 2023
Affected Product(s):
BIG-IP LTM
Known Affected Versions:
11.2.0, 11.2.1, 11.3.0, 11.4.0, 11.4.1
Fixed In:
11.5.0, 11.4.1 HF6, 11.3.0 HF8, 11.2.1 HF11
Opened: Jun 07, 2013 Severity: 3-Major Related Article:
K14527
FTP may not work when a port requires translation but the IP address does not. In this scenario, the data channel for the FTP transfer may fail.
FTP fails.
In an FTP transfer, the port requires translation but the address does not. For active FTP auto-lasthop or a lasthop pool is configured. For passive FTP, gateway pool is configured. An example of this scenario in active FTP, is if the SNAT is not set and port is configured to be any port.
For active FTP, you can use SNAT to work around the issue. For passive FTP, port translate configuration need to be same as address translate configuration to avoid the issue.
FTP will work in case of port translation is needed.