I booted from the KNOPPIX V5.1.1CD, and got everything fine except the net.
I do Netcardconfig, and put the following:
IP: 192.168.1.2
Netmask: 255.255.255.0
Broadcast address: 192.168.1.253
Default gateway: 192.168.1.1
Nameserver: 208.67.222.222

And then is gives an error saying /sbin/route: Input/output error

And after that I can't ping www.google.com; but I can ping my modem's page 192.168.1.1

When as root I do /sbin/route it gives
Code:
bash: /sbin/route: Input/output error
What can I do now?
(Edited)