configuring fedora 10 using static ip

[dev36]

i have tried in all way to configure the internet using static ip.but i am failed to do that.
i configured in the following way:

#service NetworkManager stop
#sudo chkconfig NetworkManager off
#sudo chkconfig network on
#system-comfig-network

manually static ip is put
left subnet mask,gateway then change to route tab
and ip address netmask(prefix),gateway address is put
then change to dns tab to put address of DNS server
check the box "Activate device when computer starts"
saved the settings then in the terminal i wrote
#sudo service network restart
#sudo chkconfig network on
but when i called up eth0 card
last line shows "RTNETLINK:Invalid arguement"
and i can't access my internet.so pls help me out of this.
when i wrote #route add gw x.x.x.x(gateway address)
it shows hostname lookup failure.
what to do??????
i am totally confused.

[Lazydog]

Use system-config-network to configure the network.

[dev36]

Use system-config-network to configure the network.

i think you didn't see my problem.i have tried in that way also.but still i am having the problem.try to understand and read my question carefully.ok?????
there was a spelling mistakke config but i have written there correct spelling.anyways.help me in which way i can do that???

[Lazydog]

Post /etc/sysconfig/network-scripts/ifcfg-eth0