Arash:
AFAIK, you must open a path in the firewall to the vpn daemon
(port/protocol) and the daemon will be in charge of administering the
traffic between the clients and the vpn server.
Additionally, you must tell to the client where is the server (the ip
address), what device will be used (tun or tap device).
May you want ask in the mailing list for the vendor/provider of the vpn
software that you are using.
Hope this helps,
Jorge Dávila.
On Wed, 12 Sep 2007 02:06:53 +0330
Arash Yadegarnia <arash@xxxxxxxxxxxx> wrote:
Hi, :)
Here is the situation:
I have a machine with 2 NICs, assume eth0 (192.168.0.10) connected to my
LAN, and eth1 (192.168.0.20) connected to Internet through a gateway.
I also, have a virtual tap0 (TUN/TAP) interface (10.0.0.1) on this
machine.
All that I want to do is simply, forwarding ALL traffic coming to eth0
from the LAN, into my tap0 interface, So I can modify them using my own
user space program which can capture packets on the tap interface and
send them on eth1 to another address somewhere in the world (through
Internet).
Since I want IP addresses unchanged, I cannot use NAT or Masquerading.
As far as I know, In this matter forwarding should be done in Layer-2 so
I'm not sure if I can use iptables to do the job.
I also have tried bridging but I was trapped in a horrible bridge loop
(Enabling STP on bridge also didn't work for me).
Any ideas? :)
Thanks,
Arash
Jorge Isaac Davila Lopez
Nicaragua Open Source
+505 430 5462
davila@xxxxxxxxxxxxxxxxxxxxxxx
