Last Modified: Sep 13, 2023
Known Affected Versions:
15.1.0, 18.104.22.168, 22.214.171.124, 126.96.36.199, 188.8.131.52, 184.108.40.206, 15.1.1, 15.1.2, 220.127.116.11, 15.1.3, 18.104.22.168, 16.0.0, 22.214.171.124, 16.0.1, 126.96.36.199, 188.8.131.52, 16.1.0, 16.1.1
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.