@henningw I've made a review on my own, before asking a second opinion. The patch remained open for more than 10 days, which I think is too much. I wasn't aware that you are still reviewing the patch.
The whole mode is in "work in progress" state, so I am willing to accept commented out code blocks in this state. It's more important to have proper integration with the other IMS modules and working usecases for the IPSec module itself.