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AWS Rekey

Hi,

We have 8 sites connecting to AWS via Ipsec VPN. Every now and then traffic stops flowing through the VPN but Sophos says it is still connected. The only way to resolve this is to Deactivate and Reactivate the VPN in Sophos.

It appears that this happens when the Rekey process happens occasionally. It seems that Sophos is initiating the Rekey but then shortly afterwards AWS also initiates the Rekey. Sophos musn't be initiating the Rekey in time. We have the lifetime set to 28800s which is the correct setting. How do we ensure Sophos initiates the Rekey in time / before AWS does?

Can anyone suggest how to prevent this from happening?

Thanks,

Max

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