How To: Internet Connection Sharing - Mack Connectivity Pack

[cc.stephen.yu]

Hi Mack,

First of all, I like to say thank you, and other people as well, for all those wonderful A780 connectivity tools. Amazingly, they're working perfectly fine with my phone.

Not until recently I came across a problem when I tried to test a WAP gateway which is from www.kannel.org, and I couldn't figure it out where the problem was.

My phone worked fine without having a WAP gateway setup on the fake gprsv0 network. But once I put in a gateway address (which is the same as my ppp0 on my Linux box - 192.168.1.3) and port 9201, Opera stopped working and prompted me "It is a network problem"

As a far I know, there was nothing to do with kannel WAP gateway yet since I didn't see packet going through my ppp0 on my Linux box (I monitored it with tcpdump on ppp0). And I looked at your scripts and I didn't see any routing problems there. All outgoing packets through the fake gprsv0 should be routed through my Linux box (/tmp/mack/iptables/sbin/iptables -t mangle -A POSTROUTING -o gprsv0 -j ROUTE --gw 192.168.1.3).

Please advise if you have an idea of why it didn't work. Thanks.

Hi Mack,

Just to follow up with my last question. Does your fake gprsv0 support WAP protocol?

I think the phone is using WAP protocol instead of UDP. That could be why there is no packets going through the bluetooth network to the Linux host.

Please advise.

[matiu]

Great job!! Thank you very much Mack!!!

I make it work, I had to change the line:


/tmp/mack/iptables/sbin/iptables -t mangle -A POSTROUTING -o gprsv0 -j ROUTE --gw 192.168.1.3

in inet-bt, in order to fit my network configuration (It may help someone to know that 192.168.1.3 must be your PC ip).

thanks!
matías
---
http://nits.com.ar

[wch2008]

can i get instruction on how to do this under windows xp sp2? thx!!!!!! ^_^

[ndogg]

some one help me...?
how do we activated ppp0? (could u give me detail intructions please?)

[ndogg]

anyone help me to share my internet connections with my phone over usb cable?
now i'm using MEPIS live CD distro....
some one please help me?

[prvnet]

similar tool for Windows is required since some service providers doesn't allow to share the mobile gprs on PC.

[ghiki]

what is MY_A780_BT_ADDRESS??? IP or MAC adress???how look this??

i have windows XP pro and Bluesoleil software for bluetooth

[vimalg2]

I've read this thread for over 10 months now, and it doesn't seem like anybody's having the same problem as i am.

I'm desperate for internet access on Ubuntu/debian (repositories aren't very useful until you can connect to them... lol) My area doesn't have dsl/cable net atleast for another year. My operator in Kerala(Airtel) allows me unlimited acess to their Edge+Gprs network for about US$6/month
. So its a cost-effective solution to use my phone as a modem. Enough rambling, let me present my troubleshooting so far...

I currently use Motorola Phone Tools to 'dial-in' to gprs. I assume that piece of software magically does the necessary Natting and routing to get the data to the windows tcp/ip stack. Works fine barring the occasional weird random reboot from my A780.

I've dutifully followed the instructions at the nice domement at:
http://www.troodon.org/a780/a780-linux

... to get Linloader working 8 months ago and i've tried out and cherished those wonderful 'native' ezx Apps like eKonsole, eDitore, ezxSysinfo, qonsole(oops ;-])

I've read the wikis top to bottom several times over, understand how linloader , neo loader etc function.

By following the above document and leoppp's README file, I was able to create both UsbLAN and PPP links over the USB Cable. Telnet worked fine with both methods. I ran ifconfig on both my host PC and my A780 to understand how the two different techniques work in essence.

Remember that i had followed the instructions in that document to a letter. By now had installed mack's connectivity pack after untarring to /diska/.system/QTDownload/, hence automatically creating a new directory called mack and a README file. I also copied the scripts to MyPrograms.

Now, i create a Ppp connection over Usb using the exact SAME example commands in above troodon.org document; click on LeoPPP and as usual PPP over usb is established.

Next i goto Setup->Network->Airtel GPRS->Connect to create a data path to my isp. I verify this by successsfully pinging www.google.com from the eKonsole app.

Now the moment of despair. However many times i click on MackNAT.lin, it makes no difference. On discovering that it references a file 'masq' in the iptables sub-directoy, i proceed to open that up as well.
The below are the only contents of that file after a fresh unTAR operation:
" #!/bin/sh

ln -s /diska/.system/QTDownLoad/mack /tmp/
echo 1 >/proc/sys/net/ipv4/ip_forward
insmod /tmp/mack/iptables/modules/ip_tables.o
insmod /tmp/mack/iptables/modules/iptable_filter.o
insmod /tmp/mack/iptables/modules/ip_conntrack.o
insmod /tmp/mack/iptables/modules/iptable_nat.o
insmod /tmp/mack/iptables/modules/ipt_MASQUERADE.o
/tmp/mack/iptables/sbin/iptables -t nat -I POSTROUTING -s 192.168.1.0/24 -j MASQUERADE

"
This seemed to be pretty similar in form, and structure to most IP masquerading /1:many NAT tutorials i've read recently. It should work in principle since my host Ip was something between 192.168.1.1 thru to 5(i dont exactly remember which, i just followed the document example to the DOT)

Oh dear, i forgot to mention that after clicking on MackNAT.lin, I executed the following commands on my linux host pc(xubuntu 6.10, kernel 2.6.18)

route del default
route add default dev ppp0
(as per Mack's README, since i'm not concerned about unexpected traffic)

So my questions regarding my utter failure to accomplish this simple task are as follows:
1) does iptables have to started or loaded manually on my linux host pc too? i do believe most modern distro's have it compiled into their kernels or something ; i'm no unix guru, just a tweaker.

2)My mobile oprator seems to have some kind of transparent gateway/proxy on their premises. going to checkip.dydns.com gives me the same Ip address as other users of airtel's gprs. This is probably of no consequence since most GPRS providers do have some kind of gateway in place always. Could this be a problem(i.e not being on same sub-net as Isp? it shouldn't, right?)
If there are other Airtel India subscribers on the 'Mobile Office' plan, plz ping me or reply to let me know if you face the same/similar problem.

3) can mack or some guru suggest some more troubleshooting steps(maybe some networking tools) that might pinpoint my problem

I reaally want to switch over to Linux full-time to work on porting more of my fav apps to ezx. If anybody has any insights or rebukes for me, plz don't hesitate... i'm feeling so lame right now.

Lest i forget... my f/ware is Indian. non-gps, Quadband, EDGE-enabled and rocking BBC world service on real plaer LIVE. ;-)
R52_G_0D.50.AEP
R52_G_0D.39.B1P
GCOA780000SA061
62252500
Quad-Band GSM

So far, i've NEVER had ANY problems figuring out all the hacks and tweaks mentioned in these forums. i've never thought of flashing a f/ware yet coz everything works gr8, even SyncML.....

[Vxwll]

I have a Bluetooth router
and it runs on PPP connection
how do i redirect my phone to connect to it
using the connectivity pack

[swifty]

there is an excellent readme in the package.
you have to read it.
and of course you have to understand it
some basic network technologie knowledge is also helpfull.
maybe you will have a look at fake gprs too