Bug ID 812705: 'translate-address disabled' setting for LTM virtual server does not have any effect with iRules for NAT64 traffic

Last Modified: Sep 29, 2022

Bug Tracker

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

Known Affected Versions:
14.1.0,,,,,, 14.1.2,,,,,,,,, 14.1.3,, 14.1.4,,,,,,, 14.1.5,,, 15.0.0, 15.0.1,,,,, 15.1.0,,,,,, 15.1.1, 15.1.2,, 15.1.3,, 15.1.4,, 15.1.5,, 15.1.6,, 15.1.7

Fixed In:

Opened: Aug 06, 2019
Severity: 3-Major


IPv4 Packets are forwarded to server-side with destination address changed to LTM pool member address even when 'translate-address disabled' is configured on a NAT64 virtual server.


Server-side IPv4 packets are forwarded with destination address modified. The server-side packets do not reach the intended destination, resulting in connection failures.


-- Create iRules for LTM pool selection. -- Configure the NAT64 virtual server with 'translate-address disabled'. -- Send IPv6 client request accessing the NAT64 virtual server.


Use normal LTM pool selection instead of iRules-based, LTM pool selection.

Fix Information


Behavior Change