I am new to VPN and Traffic rerouting. I already read this thread:
Port forward to VPN Client?
But I didn't get it working :/ That is why I am asking again.
So here is my problem: I have a server (Raspberry Pi) behind a vodafone router which does not allow direct connections from WAN to the server. Therefore I created a VPN connections between the RPi to an openSVN server. It looks like this:
----------------------- ---------------------------------------
| Pi | | openVPN Server |
| (VPN IP: 172.X.X.2) | <---> | (VPN IP: 127.X.X.1; WAN IP: Y.Y.Y.Y) |
----------------------- ----------------------------------------
the VPN connection works. If I call
wget 172.X.X.2:8080
from the openVPN Server, it works and the result is the expected website.
So what I want is: If I call Y.Y.Y.Y:54321 from WAN it should be forwarded to 172.X.X.2:8080 to allow the access from outside on the RPi.
Is this possible? I already enabled port forwarding and tried to following:
# sysctl -w net.ipv4.ip_forward=1
# iptables -t nat -A PREROUTING -d Y.Y.Y.Y -p tcp --dport 8080 -j DNAT --to-dest 172.X.X.2:8080
# iptables -t nat -A POSTROUTING -d 172.X.X.2 -p tcp --dport 8080 -j SNAT --to-source 127.X.X.1
Can you please tell me where my mistake is or how it should be working? :)
