Last Modified: May 29, 2024
Affected Product(s):
BIG-IP TMOS
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
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).
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.