PFSense impersonate MAC

Discussion in 'Networking' started by Stonent, Aug 2, 2019.

  1. Stonent

    Stonent New Member

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    My internet comes in via an RJ45 to a ISP provided "modem" that also has gigabit ports and wifi. I suspect like many it is MAC locked to that device. I would like to insert a firewall before the "modem" and was wondering if anyone had done this before? I assume the "modem" is required because it has so much ISP related stuff in the menus. It's a Calix Gigacenter.

    Basically I'm wondering how PFSense can deal with impersonating a MAC of a device that's on its output port, if that will cause strange issues or not and hopefully trick the modem into not seeing it.
     
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  2. RTM

    RTM Active Member

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    If you want to use a different MAC Address than the original one, you can change it quite easily:
    Open the interface under the "Interfaces" dropdown and edit the "MAC address" field.

    TL;DR: Interfaces -> WAN (probably) -> MAC Address field

    BTW: If this works, then I doubt you'll need to use the "modem".
     
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