NAT+IPSEC toubles

[Administrators]

Hi,

I'm building VPN connected to CISCO device.

I NEED to translate my LAN adress to a given adress.

The VPN work well when I try doing
ifconfig em0 alias _given_ at _
ping -S _given_ at _ dest_@

but I didn't manage to translate LAN adresse AND having VPN used.

I can pass throug VPN using actual adress but the CISCO endpoint drop it
or I translate, but packets didn't go in the VPN.

Any idea ?

Using 4.9-RELEASE-p4, ipf and ipnat

Hubert Adgié.
Administrateur Système.