The MAC Address menu contains settings to let you electronically change the Mac (Media Access Control layer) address of WAN port interface, and the various Wi-Fi interfaces. Note that this function does not change the MAC Address burned into the actual device chip, it just overlays the different address in software.

WAN Port: In this field, you can enter any valid MAC Address to be assigned to the WAN interface.

• Default: This option leaves the MAC Address as the fixed factory hardware address burned in to the device's chip.
• Random: Choosing this option assigns a random MAC Address to the device
• Clone PC: Choosing this option assigns the same MAC Address used by the hardware client connecting to the Tomato router.
  Most cable companies authorize your cable modem based on it's MAC address. Every DOCSIS cable modem has a unique one. When your modem boots up, it attempts to talk to your cable provider, and the provider will either grant or deny it access based on it's MAC.Some cable companies, for some reason, also authenticate the network card in your computer. First it will authenticate the Cable Modem, and then when your computer attempts to get online, they'll check and make sure that you're still using the same computer/network card/etc that you've always used. If you've changed your network card or installed a router, they will deny you access to the Internet.

This is why most cable routers have a “MAC Address Clone” (Use Computer MAC address) feature. If you tell your router to clone your network card's MAC Address, it makes your cable provider think that you're still using the same computer/network card to access their services, and therefore they allow your router on the network.

Wireless Interface eth1: In this field, you can enter any valid Mac Address to be assigned to wireless interface eth1

Wireless Interface eth2: In this field, you can enter any valid Mac Address to be assigned to wireless interface eth1

Wireless Interface wl0.1: In this field, you can enter any valid Mac Address to be assigned to wireless interface wl0.1