PFSense impersonate MAC

Stonent

New Member
Dec 16, 2016
17
0
1
TX
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.
 

RTM

Active Member
Jan 26, 2014
554
194
43
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".