Bug ID 741676: Intermittent crash switching between tunnel mode and interface mode

Last Modified: Jun 10, 2021

Bug Tracker

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

Known Affected Versions:
13.1.0,,,,,,,,, 13.1.1,,,,, 13.1.3,,,,,,, 13.1.4,, 14.0.0,,,,,, 14.0.1,, 14.1.0,,,,,, 14.1.2,,,,,,,, 15.0.0, 15.0.1,,,,

Fixed In:

Opened: Aug 24, 2018
Severity: 2-Critical


Changing the policy mode for an IPsec tunnel can crash when switching back and forth between tunnel mode and interface mode.


A tmm restart, after a core, interrupts all IPsec tunnel service until new SAs are negotiated to replace the old ones.


Changing mode in ipsec-policy from tunnel to interface, or vice versa.


Start with desired mode, tunnel or interface, and avoid changing the value from one to the other.

Fix Information

Changing mode between tunnel and interface now works as expected.

Behavior Change