Ethernet WAN DSL WAN 3G/4G USB modem compatibility IEEE 802.1Q Gigabit Ethernet ADSL ADSL2 DSL Web-based management DHCP client DHCP server WAN Load Balancing & BackupThe Vigor 2832 features three methods of WAN connectivity - ADSL, Ethernet (Gigabit) and two USB ports for connection of a 3G/4G modem. The Ethernet port can connect to a second ADSL or VDSL modem (e.g. Vigor 120 or Vigor 130), a cable modem or any other Ethernet-based Internet feed. The multiple WAN interfaces can be used either for WAN-Backup or load balancing. Load-balancing or failover supports IPv4 only currently.WAN-Backup provides contingency (redundancy) in case of your primary ADSL line or ISP suffering temporary outage). Internet Traffic will be temporarily routed via the secondary Internet access. When normal services is restored to your primary ADSL line, all traffic is switched back to that.If you don't have ADSL, the Ethernet WAN port can instead be used as your primary/only Internet connection (using NAT) s