Internet on FC6 linux with Airtel GPRS DKU2.0

First, you got to install wvdial if not present on your linux system.( Comes with OS on FC, Redhat and CentOS)

u can try

#yum install wvdial

I used Airtel as GPRS carriers with Nokia N72 phone on Dell D520 Laptop running with FC6 Linux

username & password is taken as service provider. Other setting same as given below

File /etc/wvdial.conf :
[root@ ~]# more /etc/wvdial.conf
[Modem0]
Modem= /dev/ttyACM0
Baud= 115200
SetVolume= 0
DialCommand= ATDT
FlowControl= Hardware(CRTSCTS)
[Dialer gprs]
Username=airtelgprs.com
Password=airtelgprs.com
Phone=*99***1#
Stupid Mode= 1
Inherits= Modem0

[root@mahendra ~]# wvdial gprs
--> WvDial: Internet dialer version 1.54.0
--> Cannot get information for serial port.
--> Initializing modem.
--> Sending: ATZ
ATZ
OK
--> Modem initialized.
--> Sending: ATDT*99***1#
--> Waiting for carrier.
ATDT*99***1#
CONNECT
~[7f]}#@!}!} } }2}#}$@#}!}$}%\}"}&} }*} } g}%~
--> Carrier detected. Starting PPP immediately.
--> Starting pppd at Mon Mar 10 21:28:06 2008
--> pid of pppd: 12348
--> Using interface ppp0
--> pppd: s.com
--> pppd: s.com
--> pppd: s.com
--> pppd: s.com
--> local IP address 117.98.48.238
--> pppd: s.com
--> remote IP address 10.6.6.6
--> pppd: s.com
--> primary DNS address 202.56.230.5
--> pppd: s.com
--> secondary DNS address 202.56.240.5
--> pppd: s.com

:) Now you are connected,

[root@ ~]# more /etc/resolv.conf
#airtel gprs access DNS IPs
nameserver 202.56.230.5
nameserver 202.56.240.5

Now check

##ifconfig

add p-t-p IP as default gateway to system using :

route add default gw <-IP->

Dear you can browse internet from your favorite browser.

Enjoy.