Allow NAT-T to be set with IKEv2. Fixes #9695
(cherry picked from commit 9c4f5b95eed5534ab797f104ad9f687359bd4818)
Allow NAT-T to be set with IKEv2. Fixes #9695
(cherry picked from commit 9c4f5b95eed5534ab797f104ad9f687359bd4818)