Hi,

In openwrt system, A local DNS server runs on port 53. the resolution of Domain Name to IP is always going through local DNS server.

There are two configuration files are maintained by openwrt for resolv configuration.

one is /etc/resolv.conf and another is /tmp/resolve.conf.atuo. 

content of /etc/resolv.conf are as 

search lan
nameserver 127.0.0.1

and 

content of /tmp/resolv.conf.auto are as 

# Interface wan
nameserver <DNS Server ip 1>
nameserver <DNS Server ip 2>

Can the same configuration be achieved through RDK-B as well , where all the DNS resolution must go through local DNS server of router ?

if yes, please suggest the procedure to achieve this.

Thanks