iptables port forwarding

aidan_walsh

Hey guys,

I am having some problems forwarding ports on my Ubuntu 9.10 server to a VirtualBox VM running in the same machine. I am looking to forward any traffic on port 8080 to the VM (to start, others may be ported later).

I have tried using rules I found in this article, but they don't seem to be having the desired effect.

iptables -t nat -A PREROUTING -p tcp -i eth0 -d xxx.xxx.xxx.xxx --dport 8080 -j DNAT --to 192.168.122.1:80
iptables -A FORWARD -p tcp -i eth0 -d 192.168.122.1 --dport 80 -j ACCEPT

Any traffic going to machine:8080 is going to the local server, not the VM hosted one.

This is my first time having to look to iptables, so any assistance would be greatly appreciated.

ntlbell

It's been awhile since I did this, but IIRC you shouldn't need to use iptables at all

VBoxManage should be able to manage for it for you

aidan_walsh

VBoxManage will take care of data coming into the computer and redirect it to the VM? I didn't know that, will look down that route.

ntlbell

aidan_walsh wrote: »

VBoxManage will take care of data coming into the computer and redirect it to the VM? I didn't know that, will look down that route.

It will take care of the traffic from host to guest.

so you might need something like

allow 8080 on the host.

VBoxManage should manage the "forward" or "re-direct" from host to guest

if that makes sense?

aidan_walsh

Thats exactly what I need. Cool, time to bone up on the VBoxManage documentation