Sorry for tedious requests....
Something is still not clear....
I don't understand why no traffic is passed back to initiator :
On iPhone connection a dynamic policy is created :
as well as a pair of SA :
No traffic is present on "outgoing" SA
L2TP server (log) is answering back to iPhone but this doesn't receive back nothing
Note that policy on the "WAN" side , is refering to public ip address of dsl line, the SA instead, refers to WAN ip of routerboard itself (10.0.0.2)
Any outgoing NAT problem ? Any MTU problem ?
What should I check ?