Routing table

Hi all,
I am confusing with routing table, i use linux and iptables.
i have 1 internet gateway, and 1 router for VPN.

here is my network.
eth0=192.168.0.1
eth1=192.168.100.1
192.168.0.0/24 --- eth0(Linux Box)eth1 ---(DSL)---Internet
|
|
|
( VPN ROUTER 192.168.0.100)

Now, linux box already as internet gateway.
I want linux box, is become router,and will routing to VPN router if have request from client so can reach network in VPN if using gateway 192.168.0.1 not 192.168.0.100.

Thank you.

Your question is not clear, please explain exactly what you want and post the output of following command:

netstat -rn

I am sorry, for not clear question, and late replay.
I have 1 linux server as internet gateway, and 1 router as VPN(192.168.0.90) as VPN gateway for 192.168.0.0/25.
linux server has 2 eth, int 192.168.0.12
ext 192.168.100.1 (this is using cross to DSL modem)

I want, to make linux box as internet gateway and if some client wants access to VPN side(192.168.x.x), linux box will reroute to VPN router (192.168.0.90)
Thank you.

here is my netstat -rn

[root@holes master]# netstat -rn
Kernel IP routing table
Destination Gateway Genmask Flags MSS Window irtt Iface
192.168.7.0 192.168.0.90 255.255.255.0 UG 0 0 0 eth1
192.168.100.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0
192.168.6.0 192.168.0.90 255.255.255.0 UG 0 0 0 eth1
192.168.5.0 192.168.0.90 255.255.255.0 UG 0 0 0 eth1
192.168.4.0 192.168.0.90 255.255.255.0 UG 0 0 0 eth1
192.168.3.0 192.168.0.90 255.255.255.0 UG 0 0 0 eth1
192.168.2.0 192.168.0.90 255.255.255.0 UG 0 0 0 eth1
192.168.1.0 192.168.0.90 255.255.255.0 UG 0 0 0 eth1
192.168.0.0 0.0.0.0 255.255.255.0 U 0 0 0 eth1
192.168.8.0 192.168.0.90 255.255.255.0 UG 0 0 0 eth1
169.254.0.0 0.0.0.0 255.255.0.0 U 0 0 0 eth1
0.0.0.0 192.168.100.12 0.0.0.0 UG 0 0 0 eth0
[root@holes master]#

hello,

first : define the traffic that will goto your VPN box --> this data goes to this network handle by vpn ip addr.
second : establish a working vpn routers/route/networks.

good luck,

cheers..

In some way, I think you haven't explain so well how your network architecture is,.. thus it is difficult that someone can help you