Setting port forwarding without access to a router interface

Yui · n00b Joined: 21 Jul 2006 Posts: 29

I don't have access to my router interface for insurance reason, so I can't reset the router and other things like that.
I need port forwarding (for amule, ssh, and some programs like that), I know that it's possible to create a port forwarding rule on a router without access to it. (Azureus can do it (I think they call it uPnP), and you have an interface to do that with WinXP).
All I want is a simple program that create a port forwarding rule on my router, in a terminal if possible. Redirect port 20 to 192.168.1.32 for example.

I began to look for that a long time ago and didn't find out yet how to do it. I'm a linux newbie, so I choosed to ask here before reading all azureus code to make a program that can do that.
My English is pretty bad, I hope you understand what I want.
Thanks

Dieter@be · Posted: Fri Jul 21, 2006 5:25 pm Post subject:

yep upnp that's it, i don't know exactly "how" to do it, but it's called "universal plug and play" so search on that

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Suicidal · l33t Joined: 30 Jul 2003 Posts: 959 Location: /dev/null

I just use the following, not using upnp but linuxbox 2 linuxbox:

Yui · n00b Joined: 21 Jul 2006 Posts: 29

If I understand you, foo.bar.com is the ip (or the dyndns stuff) of my modem-router ?
So the redirection is not actually done on the modem-router but it is my local box that "listen" on that port and catch the packets ?

Suicidal · l33t Joined: 30 Jul 2003 Posts: 959 Location: /dev/null

Dieter@be · Posted: Sat Jul 22, 2006 9:41 am Post subject:

if he doesn't have access to his router web-interface , he probably can't ssh to it either i think

_________________
Nothing beats a ride on the Gentoo learning curve.
2 Gentoo Linux boxes - 2 Arch Linux boxes - Love all four
Say no to i386 binaries! -- Adopt an unanswered topic

Suicidal · l33t Joined: 30 Jul 2003 Posts: 959 Location: /dev/null

Tin · Posted: Sun Jul 23, 2006 11:45 am Post subject:

I think that the router he spoke about is a modem with router inside, not a real machine.
Then, it is impossible that a ssh daemon runs on this box.
The router interface is a web interface provided by the modem itself, and permitting to do some nat and firewall configurations.
Because he is unable to have access to the interface (no password given by the provider because if you want the password, the guarantee is not valid anymore) BUT he noticed that some programs like azureus succeed in configuring some nat settings remotely (using the upnp he spoke about ?), he is trying to find HOW it is possible without having to read all the azureus sources.

Yui, don't you think it should be interesting to ask directly to the forum of azureus how they do that ?

Good luck :-)

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Dieter@be · Posted: Sun Jul 23, 2006 3:26 pm Post subject:

Yui · n00b Joined: 21 Jul 2006 Posts: 29

Well, I think your script would work for ssh and other programs like that. But I don't think it will work for programs like amule.
It's a good script and I could use it one day. But yeah, I'll read azureus source code and try to make a script for uPnP.
Thanks anyway

I'll post here if I find how to do it.

Zi7 · n00b Joined: 23 Jul 2006 Posts: 43 Location: Provence

There's a light upnp client library available here: http://miniupnp.free.fr/
You might want to give it a shot...
Good luck!

Yui · n00b Joined: 21 Jul 2006 Posts: 29

Yeah, it's exactly what I was seeking. I tried the Joao Paulo Barraca version (command line version of miniupnp) and it works even if it's quite difficult to use.
Thanks for all.