How to share internet through ethernet cable?

ThemePark · 09-17-2013, 02:58 AM

On my laptop, I use a USB dongle with mobile broadband to connect to the internet. I also have a GuruPlug, which I have connected to my laptop with both the JTag and an ethernet cable, so I can access the plug through Putty. Now I wish to share my laptop's internet with my Guruplug, but what do I need to do to succeed with that?

evo2 · 09-17-2013, 04:23 AM

Hi,

welcome to LQ.

There are various ways to do this. The best/easiest way depends on what distro you are running. So what distro and version are you using?

Evo2.

ThemePark · 09-17-2013, 06:57 AM

Well, using cat /proc/version (which is the only command I could find for this, that worked), I get Red Hat 4.1.2-33.fa1, I hope that answers your question well enough.

evo2 · 09-17-2013, 08:40 AM

Hi,

this is a litle bit unusual, that is normally more of a server OS (and an older version). Did you install it on the laptop yourself?

Evo2.

ThemePark · 09-17-2013, 09:31 AM

No no, it's the GuruPlug that has Redhat on it, my laptop has Windows 7. But yes, since I bricked my GuruPlug I had to install everything from scratch. And updating it is exactly the reason why I need to get the internet working on it.

evo2 · 09-17-2013, 09:38 PM

Hi,

Quote:

Originally Posted by ThemePark

No no, it's the GuruPlug that has Redhat on it, my laptop has Windows 7.

Sorry, I have no idea how to do any sort of network configuration on a windows box. You might do better asking in a windows forum.

Evo2.

ThemePark · 09-17-2013, 11:53 PM

You are missing the point entirely. It's my laptop that HAS internet already, and the GuruPlug that needs to be set up to access that internet, through the ethernet cable I have connected. This has nothing to do with Windows, OR my laptop.

evo2 · 09-18-2013, 01:08 AM

Hi,

Quote:

Originally Posted by ThemePark

You are missing the point entirely. It's my laptop that HAS internet already, and the GuruPlug that needs to be set up to access that internet, through the ethernet cable I have connected.

Sorry but it seems that you are missing the point. The guruplug has network b/w it and your laptop. You need to configure your laptop to bridge that traffic to the outside world.

Quote:

This has nothing to do with Windows, OR my laptop.

Then why did you say:

Quote:

Now I wish to share my laptop's internet with my Guruplug, but what do I need to do to succeed with that?

The guruplug has network b/w it and your laptop. Your laptop has a 2nd network interface to the outside world:

Quote:

I use a USB dongle with mobile broadband to connect to the internet.

You need to configure your laptop to bridge the traffic it receives on its ethernet port to the usb dongle. How is this not about your laptop? And how has configuring it got nothing to do with the OS it is running? If you were running linux on your laptop I could describe how to do this with either a tun interface or firewall rules or by using a gui like networkmanager.

If what I describe is not the situation, please restate the problem.

Evo2.

ThemePark · 09-18-2013, 05:07 PM

Because my laptop is already set up to do that. But the image I installed onto the Guruplug is basic, and has not had the connection set up properly, therefore I need to change some settings on the Guruplug itself, not on my laptop.

evo2 · 09-18-2013, 08:10 PM

Hi,

Quote:

Originally Posted by ThemePark

Because my laptop is already set up to do that.

Have you confirmed this using some other device?

Quote:

But the image I installed onto the Guruplug is basic, and has not had the connection set up properly, therefore I need to change some settings on the Guruplug itself, not on my laptop.

Ok earlier you said you were using the ethernet cable and putty to connect to the guru plug, meaning you do have a network connection to the guruplug. So, how is the network configured on the guruplug? What is the output of the following commands?

Code:

route
ifconfig -a

(these may not be in your path if you are not root).

How did you do the installation and setup? Did you follow some set of instructions? Is so, which instructions?

Evo2.