Another port forwarding question! :(
 

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!! :mad::confused:

Any help would be much appreciated.

Thanks in advance.

Re: Another port forwarding question! :(
 

Perhaps the 3G service is not allowing port 8081?

PS.. welcome to the site

Re: Another port forwarding question! :(
 

Thanks for coming back so soon, and welcoming me :)

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

Re: Another port forwarding question! :(
 

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

Re: Another port forwarding question! :(
 

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....

Re: Another port forwarding question! :(
 

Is there anything in the firewall log?

Re: Another port forwarding question! :(
 

Nope, firewall log is useless :)

Re: Another port forwarding question! :(
 

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

Re: Another port forwarding question! :(
 

Yes, just tried it with no joy :(

Re: Another port forwarding question! :(
 

You have used forwarding and not triggering - yes?

Re: Another port forwarding question! :(
 

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 :(

Re: Another port forwarding question! :(
 

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

What's in (if it exists)

Re: Another port forwarding question! :(
 

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

Re: Another port forwarding question! :(
 

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 ----------

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

How can i change this? :confused:

Re: Another port forwarding question! :(
 

Re: Another port forwarding question! :(
 

Giving this a go now.... :)

---------- Post added at 22:29 ---------- Previous post was at 22:19 ----------

I've followed the link, and adjusted what i feel is necessary, so IPTables now looks like this:-

pi@raspbmc:~$ sudo iptables -L
Chain INPUT (policy ACCEPT)
target prot opt source destination
ACCEPT all -- anywhere anywhere state RELATED,ESTABLISHED
ACCEPT all -- 192.168.0.0/24 anywhere
DROP all -- anywhere anywhere

Chain FORWARD (policy ACCEPT)
target prot opt source destination

Chain OUTPUT (policy ACCEPT)
target prot opt source destination
pi@raspbmc:~$

---------- Post added at 22:31 ---------- Previous post was at 22:29 ----------

I tried adding this:-

"sudo iptables -A INPUT -p tcp --dport 1979 -m state --state NEW -j ACCEPT"

It accepts the changes, but then disappears after the PI is rebooted....

---------- Post added at 23:03 ---------- Previous post was at 22:31 ----------

You my man, are an absolute genius!! :) :cool:

Got this working now, thanks a million! Owe you a pint or two! ;)

Re: Another port forwarding question! :(
 

Not quite

:cleader:

Re: Another port forwarding question! :(
 

It's a gender-neutral expression, like "Hi guys" when you walk into a room full of women*


* Cue awkwardness

Re: Another port forwarding question! :(
 

Only place I found MAN to be gender neutral in all of my travels is South Africa :D There everyone is refered to by "Man"

Re: Another port forwarding question! :(
 

Man-kind, man's achievements, prehistoric man, every man for himself, hu-man... etc.

http://dictionary.reference.com/browse/man?s=t