IKE version allows selecting ike (autoselect), ikev1, or ikev2.
Split connections gives an option of separating the first right subnet from the rest, and kicking out individual statements for each right subnet for better cross-compatibility.
Backported from PR: #4137
update per PR suggestion
Fixes#3138
Co-authored-by: Greg Goodrich <ggoodrich@ippathways.com>
Co-authored-by: Daan Hoogland <dahn@onecht.net>
Co-authored-by: Pearl Dsilva <pearl.dsilva@shapeblue.com>