hello, im having the some trouble config subnet routing on centos..i posted for help here last week but could not resolv the issue.

i have the fallowing

Pc1(my lan) 192.168.50.95 - gw centos
Pc2(vpn lan) 192.168.100.23
tun0< 192.168.100.0/24
centos 192.168.50.98 - gw 192.168.50.1
eth1<192.168.50.0/24

my routes

93.198.46.70 192.168.50.1 255.255.255.255 eth1 <vpn address public
192.168.100.0 None 255.255.255.0 tun0 <vpn lan
192.168.50.0 None 255.255.255.0 eth1
Default Route 192.168.50.1 eth1

i enable the ipv4 forwarding, check the firewall but pc1 wont ping pc2 but centos can. can some one help me???

i olso check ip tables and look fine...

Sorry i don't clear about what you want to achieve.

You want PC1 to able access to pc2 ?

yes, pc1 is on my lan, centos is the vpn client y pc is in the vpn server side, so i can access using the vpn client but, i want to route those 2 subnet so other users con my lan can acces it

you can add static route to pc2 for vpn network to lan network, the gateway can be on centos(tun0 ip)

so on pc2 ..
#route add -net 192.168.50.0/24 gw [centos tun0 ip]

[root@vpn ~]# cat makeNat
#!/bin/sh
echo 1 > /proc/sys/net/ipv4/ip_forward

/sbin/iptables -t nat -A POSTROUTING -o eth1 -j MASQUERADE
/sbin/iptables -A FORWARD -i eth1 -o tun0 -m state --state RELATED,ESTABLISHED -j ACCEPT
/sbin/iptables -A FORWARD -i tun0 -o eth1 -j ACCEPT

That is a script i wrote for my vpn. I think it should work reading the information you gave. You may have to change eth1 to eth0 though. Make sure to flush any IPTABLES rules that you have that deal with forwarding. Google 'iptables nat' for more info. This will bridge the networks so you can access them either way. You shouldn't have to mess with routes as the vpn server, at least OpenVPN, should create a route for you. Let me know if you have trouble.

--Chris