OpenDNS does a good enough job. If you are on a dynamic connection you will need the OpenDNS desktop client to sync the IP connection.

Can the AC1600 v1 make use of the DD-WRT firmware?

I'm running an Archer VR600 v1, Firmware Version:0.2.0 0.9.1 v0057.0 Build 160614 Rel.41735n. I've tried using a Western Digital My Book Essential Edition 1TB USB 2.0 External Hard Drive, 2009, ext...