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

Last Modified: Nov 07, 2022

Bug Tracker

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

Known Affected Versions:
15.1.0, 15.1.0.1, 15.1.0.2, 15.1.0.3, 15.1.0.4, 15.1.0.5, 15.1.1, 15.1.2, 15.1.2.1, 15.1.3, 15.1.3.1, 16.0.0, 16.0.0.1, 16.0.1, 16.0.1.1, 16.0.1.2, 16.1.0, 16.1.1

Fixed In:
17.0.0, 16.1.2, 15.1.4

Opened: Jun 26, 2020
Severity: 4-Minor

Symptoms

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

Impact

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

Conditions

-- 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.

Workaround

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