This is a guide to setting up OpenDNS and DNS-O-Matic to filter Web Traffic for free using a Buffalo ADSL2+ Router [WBMR-HP-G300H] running DD-WRT v24-sp2 (12/21/11) std – build 18026. STEP 1 OpenDNS Sign up for an account with OpenDNS, open your email client (or web mail) and Confirm your account, add the network ip address listed and give …