[strongSwan] make before break and default activation

[Emeric POUPON]

> 
>> - what happens with other IKEv2 implementations?
> 
> That's the big question and the reason it is disabled by default (well,
> actually that old strongSwan version don't support it).  It only works
> if the responder can handle this properly so you have to experiment.

Do you mean that strongSwan version <5.3.0 cannot interoperate with strongSwan version>=5.3.0 if make before break is enabled?


Regards,

Emeric