Saturday, December 5, 2009

Turn a laptop into a NINTENDO WIFI hotspot!

(If Your card dose Not support Mixed mode, this WILL NOW work on DS/DS_lite)
(For now it works for DSi but not ds/wii :( )
Ok, so here WAS my problem:

I have WIRED INTERNET (earthlink), (and no wifi router)

it only allows ONE web connection at a time, and one IP address is assigned!

My laptop has x(UBUNTU) Linux/ vista on it, if i use the built-in hotspot creators, it says can't get IP address, and fails to connect.

After many Google searches, youtube videos, and help files, I was told many thing, but they were all made for people who want to make a hotspot for another laptop, and it requires a DCHP server, Plus your ISP must support many connections.


ubuntu or xubuntu (live CD, or install)

a pc/laptop with an ethernet port, and a wifi card(or usb wifi)

Nintendo DS, and a wifi Game

Recommended software:

Wicd - wireless lan mangier

RutilT - Great for making hotspots

In side Linux boot up the terminal:

and run this command:


this shows all your network hardware;

you should have at least 3;

they should be called eth0, lo, and wlan0 ; (if there not (like you have eth1 instead, throughout the tutorial I will be calling it eth0, so just type eth1 instead, {YES, you have to replace it EVERY Time})

now enter three commands: (one at a time)

sudo iptables -A FORWARD -i eth0 -o wlan0 -s -m conntrack --ctstate NEW -j ACCEPT
sudo iptables -A FORWARD -m conntrack --ctstate ESTABLISHED,RELATED -j ACCEPT
sudo iptables -A POSTROUTING -t nat -j MASQUERADE

Ok, what we are doing is "packet forwarding", basically your PC acts as a middle man, and when your DS, wants to go on-line it tells the PC, the PC gets the data and hands it to the Ds, and vice versa;

next run this:

sudo sh -c "echo 1 > /proc/sys/net/ipv4/ip_forward"

Now we can make ad-hoc network so the DS can talk to the PC;

open your favorite network utility; ( i will use RutilT)

now create a new profile; (or create new connection)

give it a name, (name of the connection not the WIFI signal)

Set an SSID: (wifi's name), and a WEP key, (if you must, could cause problems)

Select a channel; (6, works best for me, 10 and 1 are usually OK too)

and save it.

boot up your DS, and load your WiFi compatible Game;

and go to wifi settings, or configure wifi. (see game Manuel)

create a new connection, and select Manuel setup.

click edit by SSID and enter your SSID (wifi name)

enter Wep key if you set one;

Click "NO" beside Auto-obtain IP address;

Set the settings as follows:

IP address:

subnet mask:


(for DNS, I'm using OPENDNS, you may use your own if you wish.)

Primary DNS

Secondary DNS:

Now click "save settings"

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