You will need a mobile phone with GPRS and Bluetooth, a Bluetooth device and a NetBSD system that supports Bluetooth (4.0 and above).
In this example, we are using a Nokia 6230i phone, a Broadcom USB dongle and NetBSD 4.9.11.
# Setting up pppd
We need to create some pppd options and chat scripts, first create the directories
# mkdir /etc/ppp /etc/ppp/peers
Create a /etc/ppp/options file containing
# default options file for [pppd(8)](http://netbsd.gw.com/cgi-bin/man-cgi?pppd+8+NetBSD-current)
and a /etc/ppp/chat.gsm file containing
# Chat script to dial out with GSM phone
ABORT "NO CARRIER"
ABORT "NO DIALTONE"
Create a /etc/ppp/peers/gprs file containing
# pppd(8) options file for GPRS
# The Access Point Name (APN) used by your GSM Operator may need
# to be different from the "internet" used below.
pty "rfcomm_sppd -a phone -d ubt0 -s DUN -m encrypt"
connect "/usr/sbin/chat -V -f /etc/ppp/chat.gsm -U internet -T *99#"
## Configuring Bluetooth
First, activate Bluetooth on your phone, on the Nokia 6230i as follows
Menu > Settings > Connectivity > Bluetooth > Bluetooth settings > My phone's name
Choose a name for your device, for this example I will use "My Nokia"
Menu > Settings > Connectivity > Bluetooth > Bluetooth settings > My phone's visbility
Choose "Shown to all"
Menu > Settings > Connectivity > Bluetooth > Bluetooth >
Choose "Bluetooth on"
Plug your Bluetooth dongle into your computer and you should see something like the following on the console
ubt0 at uhub0 port 1 configuration 1 interface 0
ubt0: Broadcom BCM92035DGROM, rev 1.10/0.04, addr 2
Now, we need to establish a Bluetooth connection between your phone and computer. Enable the Bluetooth dongle
# /etc/rc.d/btconfig start
Configuring Bluetooth controllers: ubt0.
and perform an inquiry to discover the Bluetooth device address of your phone
# btconfig ubt0 inquiry
Device Discovery from device ubt0 ..... 1 response
1: bdaddr 00:22:b3:22:3e:32
: name "My Nokia"
Add an alias of the bdaddr (yours will be different) to /etc/bluetooth/hosts
# echo "00:22:b3:22:3e:32 phone" >> /etc/bluetooth/hosts
Next set up a PIN in order to pair the phone with your Bluetooth dongle
# btpin -a phone -r -l 6
and attempt to open a manual RFCOMM connection to the Dial Up Networking (DUN) service on the phone (press ^C to close the connection)
# rfcomm_sppd -a phone -s DUN
Starting on stdio...
Your phone should prompt you for accepting the connection from your computer, accept it and enter the PIN that btpin generated to complete the pairing process.
Now we can start pppd
# pppd call gprs
Serial connection established.
Connect: ppp0 <--> /dev/ttyp9
local IP address 10.177.120.221
Remote IP address 10.4.4.4
Primary DNS address IP
Secondary DNS address IP
You are now online. To terminate your pppd session just press Control + C, or send a SIGHUP to the pppd process.
# Advanced Configuration
You may find that some phones require authentication when connecting to PPP, this will be a username/password provided by your GSM Operator.
Create a /etc/ppp/chap-secrets file, owned by root and unreadable by anybody else (mode 0600) containing
# CHAP/PAP secrets file
"user" * "pass"
and add the following line to the /etc/ppp/peers/gprs file
To automatically configure the DNS server when the PPP link is brought up, create a /etc/ppp/ip-up file containing
# ip-up <interface> <tty> <speed> <local-ip> <remote-ip> <ipparam>
# $1 $2 $3 $4 $5 $6
if [ -f /etc/ppp/resolv.conf ]; then
rm -f /etc/resolv.conf
mv /etc/ppp/resolv.conf /etc/resolv.conf
# See Also
The [[Bluetooth]] wiki page contains more general Bluetooth configuration, and details of all PPP options can be found in the [pppd(8)](http://netbsd.gw.com/cgi-bin/man-cgi?pppd+8+NetBSD-current) manpage.
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