Portforwarding and OpenVPN Client

[dlindh]

Hi!

My ISP just changed from public ip to private ip on the broadband connection Im using. I really need to have public ip since I need to connect to my alarm system etc from remote.

I setup a OpenVPN tunnel to a provider and connecting to stuff on the internet works fine, but if I try to connect for to my VPN-IP and port 80 that used to be redirected to lan ip 192.168.1.54, I get the login prompt to my asus router.

Could anyone help how to get around this?

Regards
Daniel

 

[cosmoxl]

1) You need to be testing this setup by knocking on the door of the IP address you're visible to the internet with - that of the VPN. It sounds like you're testing this by going to the internal IP the VPN provider assigns you since you say you're getting your router web page.

2)If your VPN provider allows for forwarded ports, you must take the port(s) they assign you and use those. You can't use the typical service ports such as 80. You will have to configure the apps and hardware (alarm system) to listen on the port(s) your VPN provider has assigned you.

3)Then you'll need to configure iptables on your router to forward the port to the proper device on your LAN. The following is how to do that, but you must change the tun device, internal IP, and port to suit your setup.

iptables -I FORWARD -i tun11 -p udp -d 192.168.2.202 --dport 53929 -j ACCEPT

iptables -I FORWARD -i tun11 -p tcp -d 192.168.2.202 --dport 53929 -j ACCEPT

iptables -t nat -I PREROUTING -i tun11 -p tcp --dport 53929 -j DNAT --to-destination 192.168.2.202

iptables -t nat -I PREROUTING -i tun11 -p udp --dport 53929 -j DNAT --to-destination 192.168.2.202