[Openswan Users] Openswan Configuration issues

[ananth desh]

Dear All,
 I am trying to setup a VPN  ,wherein on site 1 there is already a
IPSEC Checkpoint vpn
and on SIte 2 i am trying to install OPenSwan software whose IP is
10.1.6.100/24 which is nat'd to
a public address say 202.10.10.10/32
   Now  my requirement is that i have 5 linux clients in site 2 who
has ip address 10.1.1.10/24 ,
 10.1.2.10/24, 10.1.3.10/24 and so on ,Basically they are in different
subnets .They dont
fall in the same subnet as the OPenSwan VPN server.These linux clients
should connect to
Site 1 servers whose IP's are in the range 10.32.67.0.24.In Site2
iam not in a position to route the traffice destined to site 1 servers
 through the openswan server as i dont have access to the routers to
change the routing.

 Can somebody guide me how to have this setup working.I heard that
l2tp and ppp need to be installed on site 2 Openswan server
which will assign Ip's to the VPN clients(which will solve the clients
being in different subnet issue),
But i am  not able to get this right.Appreciate if somebody can help
me with the detailed configuration.

  Please note all my clients on site 1 and 2 are Linux based.

Thanks
Mark