Double Router OpenVpn Port Forwarding

[Micheal Tim]

Here Is my Scenario :
REFS:
ROUTER1------------ -IS A ROUTER/MODEM combo. and connects to internet through Isp phone line.
Does not support dd-wrt firmware, so the need for second router

ROUTER2..............just router only, connects to the wan port of Router1 to get to internet, Flashed with dd-wrt for vpn client support

ROUTER_1 _INTERNAL IP: 192.168.1.1, DHCP is enabled.

ROUTER_2 _INTERNAL IP: 192.168.2.1, GATEWAY:0.0.0.0, DNS:dns: 0.0.0.0.


ROUTER_2 _EXTERNAL IP: 192.168.1.20, GATEWAY:192.168.1.1, DNS:dns: from vpn provider.

PC1 _INTERNAL IP: 192.168.2.102, GATEWAY:192.168.2.1, DNS:dns: from vpn provider.
PC2 _INTERNAL IP: 192.168.2.103, GATEWAY:192.168.2.1, DNS:dns: from vpn provider.


DHCP IS DISABLED ON ROUTER2 SO EVERYTHING IS STATIC



VPN (openvpn client) is INSTALLED ON Router2 through commandline.

Now all PC1 & PC2 can now connect to wireless ssid of Router2 and vpn works on them all


PORT FORWARDING ON PC1 & PC2 FOR EXTERNAL SERVICE TO ACCESS THEM
Everything works well without vpn , but once i turn on vpn I loose access to the port.

PROBLEM HERE:
The vpn provider said the problem has nothing to do with their service.
I did as adviced on here http://www.dd-wrt.com/phpBB2/viewtopic.php?p=707694&sid=781f956c7bdd025e69e0a4a1659b9499
and it still failed.
here is what i executed on the dd-wrt console for PC1:
iptables -t nat -I PREROUTING -i ath0 -p tcp --dport 2300 -j DNAT --to-destination 192.168.2.102
iptables -I FORWARD -p tcp -d 192.168.2.102 --dport 2300 -j ACCEPT

and I can't still see the service.
Please any help to make it work would be appreciated.

 

[Atomicamp]

Here Is my Scenario :
REFS:
ROUTER1------------ -IS A ROUTER/MODEM combo. and connects to internet through Isp phone line.
Does not support dd-wrt firmware, so the need for second router

ROUTER2..............just router only, connects to the wan port of Router1 to get to internet, Flashed with dd-wrt for vpn client support

ROUTER_1 _INTERNAL IP: 192.168.1.1, DHCP is enabled.

ROUTER_2 _INTERNAL IP: 192.168.2.1, GATEWAY:0.0.0.0, DNS:dns: 0.0.0.0.


ROUTER_2 _EXTERNAL IP: 192.168.1.20, GATEWAY:192.168.1.1, DNS:dns: from vpn provider.

PC1 _INTERNAL IP: 192.168.2.102, GATEWAY:192.168.2.1, DNS:dns: from vpn provider.
PC2 _INTERNAL IP: 192.168.2.103, GATEWAY:192.168.2.1, DNS:dns: from vpn provider.


DHCP IS DISABLED ON ROUTER2 SO EVERYTHING IS STATIC



VPN (openvpn client) is INSTALLED ON Router2 through commandline.

Now all PC1 & PC2 can now connect to wireless ssid of Router2 and vpn works on them all


PORT FORWARDING ON PC1 & PC2 FOR EXTERNAL SERVICE TO ACCESS THEM
Everything works well without vpn , but once i turn on vpn I loose access to the port.

PROBLEM HERE:
The vpn provider said the problem has nothing to do with their service.
I did as adviced on here http://www.dd-wrt.com/phpBB2/viewtopic.php?p=707694&sid=781f956c7bdd025e69e0a4a1659b9499
and it still failed.
here is what i executed on the dd-wrt console for PC1:
iptables -t nat -I PREROUTING -i ath0 -p tcp --dport 2300 -j DNAT --to-destination 192.168.2.102
iptables -I FORWARD -p tcp -d 192.168.2.102 --dport 2300 -j ACCEPT

and I can't still see the service.
Please any help to make it work would be appreciated.

Did you ever find a solution to this? I have theexact same setup with the exact same problem!