Last Modified: Oct 06, 2020
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Known Affected Versions:
11.3.0, 11.4.0, 11.4.1, 11.5.0, 11.5.1, 11.5.1 HF1, 11.5.1 HF10, 11.5.1 HF11, 11.5.1 HF2, 11.5.1 HF3, 11.5.1 HF4, 11.5.1 HF5, 11.5.1 HF6, 11.5.1 HF7, 11.5.1 HF8, 11.5.1 HF9, 11.5.10
12.0.0, 11.5.2, 11.4.1 HF6
Opened: Aug 28, 2014
Related AskF5 Article: K16243
When using a LSN pool with persistence mode address, in addition to reusing the same translation address for subsequent connections, the translation port also persists and is reused.
Poor utilization of available translation ports and very high levels of port reuse. In the case of TCP connections this port reuse can cause servers to reject connections because a previous connection is in the TIME_WAIT state.
LSN pool with persistence mode address.
An issue with excessive port reuse in CGNAT translations when using persistence mode address has been fixed.