UBUNTU : SHARE UBUNTU CONNECTION WITH SYMBIAN HANDPHONE

UBUNTU Newbie. This guide will let you share your internet connection with symbian handphone by Bluetooth so that you can surf the net on your bed without paying high GPRS/HSDPA rates

I m just summarizing the steps, credits goes to the author of websites at the end of this post

This is my first HOWTO, feel free to correct my mistakes

My setup:
Nokia n73 (most Symbian handphones will do, even Sony Ericsson's)
Feisty i386 (just about any distro will do)
bluetooth dongle supported by Ubuntu (mine is CSR)
wireless connection to AirStation router

Pair up your phone and your computer

1. make sure you have bluez-gnome installed, otherwise install it by the following command:
   
   Code:

   aptitude install bluez-gnome

2. make sure you have a bluetooth icon in the notification area (otherwise you can't set PIN while pairing)
3. on your phone, go to Connect > Bluetooth >. Paired devices > Option > New paired device, choose your computer

Setup your phone:

1. Backup your phone!
   I m a noob and can't fix your phone if anything goes wrong
2. Install gnubox for Series 60 v3 or other Symbians(if you have a s60v3 phone, you will have to sign the sis file. just follow the instruction on the download page, 5th reply)
3. Run gnubox, Options > Debug > Dump Full CommsDB, this dump the network configuration, in case any thing goes wrong
4. Create an Access point, goto Tools > Settings > Connection > Accesspoints
   Name it "Bt" (case sensitive), set Data Bearer to "data call" and dial-up number to some random number
5. Run gnubox again, Options > Install > Create records
6. Restart gnubox, Options > Install > set RAS login script
7. Restart gnubox, Options > 2box Bluetooth > LAN Access server, select your computer, no encryption if it ask

Setup your ubuntu

1. put the following into /etc/ppp/peers/dun
   
   Code:

   115200
   noauth
   192.168.11.30:192.168.11.40 (make sure these address doesn't crash with other on your network)
   crtscts
   ms-dns 
   lock

2. execute the following as root, to setup network forwarding, otherwise you can only access LAN from the phone
   
   Code:

   echo 1 > /proc/sys/net/ipv4/ip_forward

3. Code:

   iptables -t nat -A POSTROUTING -s 192.168.11.0/24 -j MASQUERADE

4. Code:

   dund --msdun --listen call dun

DONE! grab your phone, fire up the Web app. and enjoy!

(credit to : kiddyfurby > ubuntuforums.org)