Problems MacOS Big Sur VPN IPsec session is ok, but no packages transfered?

[t.kott]

Hello,

I updated my Macbook Pro Mid 2014 to MacOS Big Sur (11.0.1.)

Now I have problems to connect via CISCO IPsec native Client.

Conection ist online, also see aktive session in our Firewall, but no Bytes can be transfered.

Wether from Firewall to Mac nor versus.

It worked fine since 2014. No we have problems.

What can we do or prove to get rid of this problems? Is there any other experience from other users?

Thanks Thorsten

[Leo Laohoo]

AnyConnect macOS 11 Big Sur Advisory 

[t.kott]

Thanks Leo,

It worked with AnyConnect. This is positive in the first step.

But it is a kind of workaround. Any Connect creates AnyConnect connections, not VPN-Client connections.

Firewall must be configured in other way.

Did it mean, that cisco native client will not work in Big Sur any more?

But why is there a possibility to choose IPsec connections in MacOS network configuration?

Thanks Thorsten