I've got quite a few devices on my local home network. I'm using the Comcast router as my gateway, and it's pointing at the Comcast DNS servers. But is there a way to have the Comcast router act as it's OWN DNS server and forwarder? I'd like my internal devices to register with the Comcast router for DNS so that I will have both forward and reverse lookups in my internal network. Or will I need to setup my own DNS server internally?