This may not be a question for this forum but anyway.

I would like to know if anyone has ever gotten a thin client (jammin
125) to  work through a vpn tunnel. I have a client who wants to set up
a second site and connect them through a vpn and run all the thin
clients through the vpn tunnel. This would alleviate the need for
replicating the server at the second office. He has the 2 sites
connected now via broadband with a network to network vpn established.
In theory this should work since it is the routers/firewalls that are
maintaining the tunnel, not the workstations.

I have all the services set up properly to handle the two segments
(192.168.1.x & 192.168.2.x) and they work if I set up the second lan
segment (192.168.2.x) locally through a router (no filtering). When I
put the vpn appliances in between the two segments and establish the
tunnel the thin clients won't work. All other traffic flows normally. I
can telnet, ftp, ssh, http, https, etc. from a workstation on the second
segment to everyone on the first segment and vice/versa. I cannot
however get dhcp, or X which are necessary for the scheme to work. The
dhcp packets never make it off the local segment and I don't know where
the X stuff goes. I used a linux workstation booted into runlevel 3 and
executed X -query 192.168.1.3 to test connectivity to the server. I can
see packets on both lan segments but the client never gets a response
from the server and hangs at the grey screen with the X cursor.

Once again the above scheme works fine if the two segments are connected
together locally with a simple router with no filtering.

I have tried just about everything I know except opening up all the
appropriate ports on the vpn appliances but refuse to do this since it
defeats the purpose of having the tunnel and it would broadcast unwanted
traffic to the internet not to mention opening huge security holes.
Opening these up in my test environment with a simple hub inserted in
between the two vpn/routers to simulate the internet would probably work
but when connected up to the internet it would fail. The packets would
never find the remote private segment.

Andre




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