Thank you so much, it has taken these commands. :-)
I believe it should have be disabled now. You reckon, if there is any ssh command through which I can confirm if the value for rfc1918 has been changed from '1' to '0'.
I can check by accessing the domain name by connecting my laptop with the phone's hotspot, but my RUT955 have Tesltra sim in it and due to poor reception in my area, the signal light is blinking red and green and i can't test it until unless i am in a good reception area. Really appreciate your help.