FVS338 and remote VPN via UMTS

[Tobias_HB]

Hello Forum.
Actually i have registered because i could not establish a VPN connection during travels. I have bought a FVS 338 for the reason, to make my Fileserver and other devices at home, reachable during travels.
I have installed a dyndns service and it works pretty well, but i can not establish a VPN connection when i am on the road.
I establish a connection via broadband UMTS and get always a different IP. So it is not possible to make a secure connection to my homenetwork.
At home my network is 10.120.202.0/24 and the FVS338 has the 254. Everything above 235 is used for several devices. So my question is: Is there a HowTo or is somebody able to give me some hints to establish a vpn connection using a non static ip on the client?
The firmware at the fvs338 is the newest avalible 3.0.2.21.
So hopefully someone has a solution or can give me a hint for getting it done by myself.
Regards from germany

Tobias

[adit]

Try one of my tutorials below.

[jmizoguchi]

http://vpncasestudy.com/casestudy/FV...casestudy.html