Bug ID 427107: dnatutil fail to parse ltm log for deterministic NAT snippet when lsn_pool name is too long

Last Modified: Oct 06, 2020

Bug Tracker

Affected Product:  See more info
BIG-IP CGN(all modules)

Known Affected Versions:
11.3.0, 11.4.0

Fixed In:

Opened: Aug 05, 2013
Severity: 3-Major
Related AskF5 Article:


dnatutil fails reverse mapping using ltm log.


dnatutil reverse mapping


LSN Pool name longer than 20 characters


1) Restrict LSN Pool's name to be 20 characters or less. 2) Copy out deterministic NAT LTM log snippet and manually add the missing information (min/max/why). Use dnatutil --file option on the edit file.

Fix Information

deterministic NAT LTM logged configuration snippets will no longer truncate needed information when LSN Pool name is longer than 20 characters.

Behavior Change