[Openswan Users] vpn server and DNAT

[Mario Caspari]

Hi all,

I've got a problem with my Openswan Installation. But I found just a
posting, where this problem yet was described.
But unfortunately this posting was not continued, exactly at that point
where it became to get thrilling for me...
OK, here's my problem, or better, what I'm thinking about to be my
problem.
I want to realize a VPN with Openswan, l2tpns and freeradius on the
serverside, and mostly Xp prof on the clientside.
There is a firewall, which ist portforwarding all udp 500,4500 packets
to the vpn-gw, which has an private ip address.
So the thoughts of the client and the server about what's the left
endpoint of the tunnel are different.
Is there somebody who knows the solution for this problem or even can
say, ther is no solution?

With kind regards 

Mario