Configuring for centos 7 L2TP VPN servers to work with iOS 14 and macOS Big Sur client devices

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Configuring for centos 7 L2TP VPN servers to work with iOS 14 and macOS Big Sur client devices

For Centos 7 l2tp server 

at /etc/ipsec.conf  "sha2-truncbug=yes" change to "sha2-truncbug=no"

 

service ipsec restart

I hope it can help for you.