hi,
there are two howto in italian ….
-http://www.zeroshell.net/forum/viewtopic.php?t=586
-http://www.renatomorano.net/?p=922
this work only if you have an pubblic IP on DSL side.
on configuration server vpn (side DSL):
http://www.renatomorano.net/wp-content/uploads/2010/11/VPN00serverrole.png
on configuration client vpn ( sede 3g):
http://www.renatomorano.net/wp-content/uploads/2010/11/VPN00CLIENT1.png
