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Block Alternative DNS Server with Edimax Router

Discussion in 'Networking' started by James Crosso, Feb 18, 2012.

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  1. James Crosso

    James Crosso Thread Starter

    Joined:
    Jun 7, 2003
    Messages:
    110
    I am a big fan of openDNS and want to prevent any client on the network from changing their DNS servers from the router setting.

    While I am able to set the default DNS router on the Edimax router, devices on the network can easily change the DNS setting to Google (8.8.8.8) or other.

    The Edimax router has a fairly spartan UI and I was looking for help. While they don't have a specific setting to block alternate DNS, I was hoping I could use the QoS, Static Routing, or Firewall (IP Filtering) to accomplish this.

    When I have tried with IP Filtering I have only been able to successfully block ALL port 53 requests, which has the problem of blocking all DNS servers and making me unable to connect to website.

    Static Routing I'm not sure what settings I would put in, as the router asks for Destination LAN IP, Subnet Mask, Default Gateway, Hop Count, Interface (WAN/LAN). I haven't been able to get this to work.

    QoS I thought was setup correctly to limit bandwidth to 0mbps on all requests to 8.8.8.8 but it doesn't seem to be working.

    Any help would be greatly appreciated. While Windows and Mac has full fledged settings to manage this sort of thing, iOS devices and other mobile devices don't really offer the ability for me to handle this except at the router level.
     
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