Using Ethernet devices in a WAN

The EX12 device has two Ethernet devices, named ETH1 and ETH2. You can use these Ethernet interfaces as a WAN when connecting to the Internet, through a device such as a cable modem:

By default, the 2/WAN Ethernet device is configured as a WAN, named ETH2, with both DHCP and NAT enabled and using the External firewall zone. This means you should be able to connect to the Internet by connecting the 2/WAN Ethernet port to another device that already has an internet connection.

The 1/PoE device is configured as a LAN interface, named ETH1, which uses the Internal firewall zone.