Bug ID 558602: Active mode FTP data channel issue when using lasthop pool

Last Modified: Apr 28, 2025

Affected Product(s):
BIG-IP LTM(all modules)

Known Affected Versions:
11.4.1, 11.5.3, 11.5.3 HF1, 11.5.3 HF2, 11.5.4, 11.5.4 HF1, 11.6.1, 11.6.1 HF1, 11.6.1 HF2, 11.6.2, 11.6.2 HF1, 11.6.3, 11.6.3.1, 11.6.3.2, 11.6.3.3, 11.6.3.4, 11.6.4, 11.6.5, 11.6.5.1, 11.6.5.2, 11.6.5.3

Fixed In:
12.1.0, 11.5.4 HF2

Opened: Nov 17, 2015

Severity: 3-Major

Symptoms

The data channel for active mode FTP may fail.

Impact

Active mode FTP does not work.

Conditions

Active mode FTP through a virtual with ftp profile with port set to zero and configured to use a lasthop pool.

Workaround

Use auto-lasthop instead of lasthop pool. Use passive mode FTP.

Fix Information

Active mode FTP now works correctly.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips