u people r very correct ya..
thankq all sooooo much
its not installed properly, thatz the problem.
i installed it again.
now i am able to start the service of dhcp..
i will try connecting two clients and check its functionality.
thanks alot for all once again..

i am very new to linux,so only i am struggling alot.
i am so happy that u al r ther for me to help.

Good to know you finally got it working.

hi,
i am so happy, i got it.........
DHCP is working fine.......
i connected two clients and i checked ,its working
thanks alot for u all
Thanks chaitanya.............

Always welcome..