Bug ID 921365: IKE-SA on standby deleted due to re-transmit failure when failing over from active to standby

Last Modified: Feb 07, 2024

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

Known Affected Versions:
15.1.0,,,,,, 15.1.1, 15.1.2,, 15.1.3,, 16.0.0,, 16.0.1,,, 16.1.0, 16.1.1

Fixed In:
17.0.0, 16.1.2, 15.1.4

Opened: Jun 26, 2020

Severity: 4-Minor


IKE-SAs are deleted on standby BIG-IP systems after a failover.


Some of the IKE-SAs are missing on the standby device. When a failover happens, IPsec traffic will be dropped for those missing SAs.


-- High availability (HA) environment -- Dead-peer detection (DPD) / liveness checks are enabled -- An HA failover occurs This is a timing issue and can occur intermittently during a normal failover.


Set IKE DPD interval time to ZERO (i.e., disable).

Fix Information

When the BIG-IP system is in standby mode, the system no longer retries sending IKE/IPSEC control messages, which prevents this issue from occurring.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips