I tried adding new gateway to my system.. using this way
#route add default 192.168.0.1
#echo "192.168.0.1" > /etc/defaultrouter
My network connectivity was not working, the moment I did 'rm /etc/defaultrouter' my network connectivity works well and fine, Would really appreciate if someone can explain me what is happening beneath and what is the use of /etc/defaultrouter. Thanks!