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  1. #1
    Master Untangler
    Join Date
    Dec 2008
    Location
    Greater Omaha Area
    Posts
    253

    Default DHCP: Block MAC Address Range?

    Interesting problem, a large client has an Open Guest WiFi policy, they are close enough to the Interstate and a Truck Stop (which is where I believe this is coming from) and we get thousands of DHCP requests from devices starting with UA or 00:16:a4 which are showing as Ezurio (supposedly a trucking WiFi fleet management tools and vehicle tracking company). Is there anyway which we can configure the DHCP Server to ignore DHCP requests from all Ezurio devices??

  2. #2
    Untangle Junkie dmorris's Avatar
    Join Date
    Nov 2006
    Location
    San Carlos, CA
    Posts
    17,747

    Default

    I haven't tried this myself but a quick search turned this up:

    dhcp-mac=tobeignored,00:01:02:*:*:*
    dhcp-ignore=tobeignored

    something like that under config > network > advanced > dhcp & dns
    Be careful when using that field.
    Warning: Invalid syntax will halt all DHCP & DNS services.
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  3. #3
    Untangle Ninja sky-knight's Avatar
    Join Date
    Apr 2008
    Location
    Phoenix, AZ
    Posts
    26,024

    Default

    Packet Filter, drop source mac address 00:16:a4:* ?

    I've never tried it but I think you can use a glob match in the filter.
    Rob Sandling, BS:SWE, MCP
    NexgenAppliances.com
    Phone: 866-794-8879 x201
    Email: support@nexgenappliances.com

  4. #4
    Master Untangler
    Join Date
    Dec 2008
    Location
    Greater Omaha Area
    Posts
    253

    Default

    Thanks guys, I didn't try the Packet Filter since the DHCP Ignore worked!!

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