Thread: Need a bit help with USB Networking / Router Mode
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Crogge is offline Crogge
2011-11-30 , 03:10
Posts: 543 | Thanked: 151 times | Joined on Feb 2010 @ Germany
#1
I followed the tutorials http://wiki.maemo.org/N900_USB_router / http://wiki.maemo.org/N900_USB_networking and got the network itself running. The problem is the "USB router" part which works only in a quite complicated way.

I did it in the following order...

1. Start up "Mad developer" (Installed drivers on Win7) , select "USB networking" and "Windows network" afterwards. Without this step my NB is not detecting the USB network device at all. Afterwards I have always a working USB network connection and can connect for example via SSH to the phone.

2. Change the IP from 192.168.2.15 to 192.168.3.15 in /etc/network/interfaces else the last command of step 3 will defiantly fail even if I change the number in that cmd to .2!

3. Then I disconnect the device, use "ifdown usb0" and "ifconfig usb0 down" ... and write the followings cmds:
echo 1 > /proc/sys/net/ipv4/ip_forward
iptables -t nat -F POSTROUTING
iptables -t nat -A POSTROUTING -o wlan0 -j MASQUERADE
iptables -t nat -A POSTROUTING -o gprs0 -j MASQUERADE
ifup usb0
dnsmasq -I lo -z -a 192.168.3.15 -F 192.168.3.64,192.168.3.127
It executes in general all cmds fine but the last one, there I get often the annoying error "dnsmasq: failed to bind listening socket for 192.168.3.15: Address already in use" and need to start all over again.

4. Enjoy stable / fast internet and no battery issues, in general way faster and more stable than Joikuspot / Mobilehotspot.

Are there any easier ways to share the WLAN/3G connection of the phone via USB for Win7? How can I avoid the "dnsmasq" issue or prevent that "Mad developer" will block the IP for "dnsmasq" once I set it to "Windows network"?