Thanks combo3, I already did all these steps.
But how can I ensure that now, I'm using "dnsmasq" as my primary DNS server?
In the above Ubuntu pointer, they prevent "dhcpc client" to override the "/etc/resolv.conf", and give "dnsmasq" a chance
to works (by putting "nameserver 127.0.0.1" as the first DNS server name) as the primary DNS server.
I'm unable to do that on TCL?