!! On R1

en
conf t

ip route  0.0.0.0  0.0.0.0  200.1.1.1

do show ip route static

!! configure ip setting on win & linux 

use DNS Server 8.8.8.8 in windows & 1.1.1.1 in linux (sh ifconfig.sh)

!! from windows -> open browser -> www.google.com
                            -> command prompt -> nslookup www.google.com

!! In linux machine -> links www.google.com