I use OpenWRT on my home access - points instead of stock software (due to security concerns and my OpenSourceTheWorld approach).

I also have BIND in use on my home-server, so I can use e.g. zones.

So I was trying to make OpenWRT send DNS IP address to DHCP clients. By default OpenWRT will send it's own IP (it's using Dnsmasq onboard). And I just couldn't find option to set this manually (using webinteface).

Finally I logged into CLI interface via SSH and found that this change can be made in two ways.

In /etc/dnsmasq.conf by adding line:

dhcp-option=6,IP1,IP2

Or in /etc/config/dhcp by adding to the section config dnsmasq:

list 'dhcp_option' '6,192.168.1.29'

Just restart Dnsmaq service afterwards and you're done.

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