[AC68R] setting DNS question

[ronan_zj]

I have a quick question about setting up DNS.
I currently have 10 devices, and I want to know if it is possible to setup the router which can assign different DNS to each device?
for example, I want to assign one specific DNS to 4 devices, while the rest devices use the default DNS. I understand that I can manually assign DNS on each device, but I would love to know if it is possible to set it up on the AC68R directly?

 

[RMerlin]

Not with the stock firmware, you will need to go with a custom firmware to do that.

There are many ways to do so. You could configure dnsmasq to hand out a different DNS based on the device's MAC, for example. If you search on the forum I think this has been discussed in the recent weeks.

One other method would be to configure your router to force all DNS queries from a specific IP to go to a specific DNS server - that way even if the user were to manually change the DNS on its client (for example, if you want to enforce OpenDNS on a kid's PC), he would still be forced through the specified DNS.

The following iptable rule will force all DNS queries from 192.168.1.100 to be redirected to OpenDNS's DNS server:

iptables -I PREROUTING -t nat -p udp -s 192.168.1.100 --dport 53 -j DNAT --to-destination 208.67.222.222