Another port forwarding question! :(

[Y15HAL]

Good Evening All,

Been trawling the internet for a solution to my problem, but cannot find anything thus far

I have recently had VM SH (Virgin Media Super Hub) installed, and am trying to get port forwarding set up.

I have a raspberry PI connected, with a static IP, and set a service up on port 8081.

I can connect to it internally fine when on WIFI.

I've set up port forwarding, but cannot connect to it when mobile (on 3G)....

Also, when using an online port scanner, all ports are showing as being closed....

"Problem! I could not see your service on XX.X.XX.X on port (8081).
Reason: Connection timed out."

I have even tried with the firewall turned off on the SH....added the PI to the DMZ, still no joy.....There is no firewall local on my Macbook.....

I can however, remotely access my router externally using 3G on my phone....

Any ideas? Pulling my hair out here....Going to throw this through the window soon!!

Any help would be much appreciated.

Thanks in advance.

[Kymmy]

Perhaps the 3G service is not allowing port 8081?

PS.. welcome to the site

[Y15HAL]

Originally Posted by Kymmy

Perhaps the 3G service is not allowing port 8081?

PS.. welcome to the site

Thanks for coming back so soon, and welcoming me

Surely the port should show as open when running a scan then?

[Kymmy]

Not always, does the port scan show any ports open? you may find that the security settings on the superhub is set to high

[Y15HAL]

I've tried the common ports, i.e. 80, 21, 22, 23.....All fail....

The only one i tried which worked was 8443 (the remote access one).

Firewall is currently turned off on the SH, but when it was on, it was set to low....

[Kymmy]

Is there anything in the firewall log?

[Y15HAL]

Nope, firewall log is useless

Have you tried it from another non 3G / 4G connection? A friends internet connection perhaps?

[Y15HAL]

Yes, just tried it with no joy

You have used forwarding and not triggering - yes?

[Y15HAL]

Definitely port forwarding....

I have tested and set my destination IP address as my Macbook, and the port scan was successful....

When changing the IP to my PI, it times out.....Looks like some setting on the PI is refusing the connection

[Kymmy]

...and with that simple test you have found that there's nothing wrong with the superhub

What's in (if it exists)

/etc/network/iptables

[qasdfdsaq]

Sounds like the Pi is set to only allow connections from local IP addresses.

[Y15HAL]

Originally Posted by Kymmy

...and with that simple test you have found that there's nothing wrong with the superhub

What's in (if it exists)

/etc/network/iptables

Doesn't look like it exists....

"cat: /etc/network/iptables: No such file or directory"

---------- Post added at 22:05 ---------- Previous post was at 22:05 ----------

Originally Posted by qasdfdsaq

Sounds like the Pi is set to only allow connections from local IP addresses.

This must be a default setting, as i've not changed anything....

How can i change this?

[Kymmy]

http://virtualitblog.blogspot.co.uk/...pberry-pi.html