Unable to ping dynamic leases through IPSec

[theshark81]

Hello everybody,

i've got a little problem with my IPSec Tunnel.

The tunel is up between 2 networks

192.168.81.0/24 <=> 192.168.31.0/24

But i'm unable to ping dynamics leases through the tunel.

When i ping a fixed lease from the 31.0/24 netword => e.g: 192.168.81.1 => ping OK i've got an answer

But for a dynamic lease  e.g : 192.168.81.38 => I've got Request timed out.

It's the same from the 81.0/24 to the 31.0/24 but from each network the local one is pingable and accessible. (e.g: ping 81.38 from 81.24)

edit : i've updated to 2.2 but  it was the same problem on pfsense 2.1.5