GPRS problem in Real6410

Hi all,
I got s3c6410 Arm development Board. It has been ported with Android 2.3.
This board has SIM300 GSM modem.When i tried to connect to internet through
GPRS i found APN was missing.
By searching through internet i added APN settings manually.
I got the symbol G with arrows up down in the notification area.
But when i opened the browser i am not able to browse the websites.
I checked the netcfg in the adb shell
*# netcfg*
*lo UP 127.0.0.1 255.0.0.0 0x00000049*
*eth0 DOWN 0.0.0.0 0.0.0.0 0x00001002*
I found i am not getting the ip in it.
I was able to make and receive calls through GSM modem.
The GPRS connects in the same board when i am using embedded linux with AT
commands.
When i see the logcat -b radio
*D/GSM ( 2143): [GsmDataConnection-1] Connecting to carrier: 'gprs'
APN: 'www' proxy: '' port: '*
*D/RILJ ( 2143): [0077]> SETUP_DATA_CALL 1 0 www 3*
*D/RILJ ( 2143): [0077]< SETUP_DATA_CALL {1, gprs}*
*D/GSM ( 2143): [GsmDataConnection-1] DcActivatingState
msg.what=EVENT_SETUP_DATA_CONNECTION_DONE*
*D/GSM ( 2143): [GsmDataConnection-1] DataConnection setup
result='SUCCESS' on cid=1*
*D/GSM ( 2143): [GsmDataConnection-1] DcInactiveState:
setEnterNoticationParams cp,cause*
*D/GSM ( 2143): [GsmDataConnection-1] DcActiveState: enter
notifyConnectCompleted*
*D/GSM ( 2143): [GsmDataConnection-1] notifyConnection at 1340992990513
cause=No Error*
*D/GSM ( 2143): [DataConnection] Start poll NetStat*
*D/RILJ ( 2143): [0078]> SIGNAL_STRENGTH*
*D/RILJ ( 2143): [0078]< SIGNAL_STRENGTH {17, 0, 0, 0, 0, 0, 0}*
*
*

I need guidance in debugging this issue.
Regards
sivakumar