L2TP/ipsec

RouterOS General
1

Hi Guys.
Sorry for my newbie question, but I am stuck with L2tp with ipsec.

At L2tp server window, i have provided ipsec password and IPsec = yes
When I try to connect (require encryption) from a Windows client, the connection fails.
When I set “optional encryption (connect even if no encryption)” connection is established. Why?
What is wrong?

2

HI!
I hope the information from the Wiki will be useful - https://wiki.mikrotik.com/wiki/Manual:Interface/L2TP
And as another example, L2TP with encryption- https://ibb.co/pbT64kp