AWS Tunnels Down when We make a Failover

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AWS Tunnels Down when We make a Failover

L3 Networker

Hello everyone,


I have observed that when a failover occurs on an active/passive cluster the IPSEC tunnels to AWS all go down and take a time to recover.


I have verified that the traffic goes down and does not communicate for a time of about 5-10 minutes.

Has anyone else seen this problem and do you know how I can fix it?

I would also like to comment that the tunnels are 2 by 2 with PBF and failover next hop created to not have problems of asymmetries.




Cyber Elite
Cyber Elite

Hi @Alpalo ,


Normally HA2 link is used to sync IPSEC SAs from Active to Passive firewall. Can you check if passive firewalls are having IPSEC SAs synced ?

Also I would recommend you to verify traffic as well as system logs related to the tunnel traffic to see if you are seeing any unwanted logs there.


L0 Member


We see the same thing.

If you configure tunnel monitoring - that seems to bring up the tunnel(s) again quickly. But they will disconnect - in our case approx. 60 seconds after failover.



L0 Member

I too observe the same behaviour with the same setup as your with the AWS standard 2 tunnels they have you setup. We lose about 60 seconds while they re-establish.


how would one check if ipsec is being synced properly Sutare ?

Hi @abettencourt ,

To check if IPsec SA were synced just login to the passive member and confirm you see established SAs.

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