D-Link DSL-2540U/BA/T1D, Ethernet WAN, Fast Ethernet, DSL WAN D-Link DSL-2540U/BA/T1D. Ethernet interface type: Fast Ethernet, Cabling technology: 10/100Base-T(X), Ethernet LAN data rates: 10,100 Mbit/s. Firewall security: Network address translation (NAT) firewall, Stateful packet inspection (SPI) firewall, Filtering description: ICMP, TCP, UDP. Supported WAN type: ADSL: PPPoA, PPPoE,IPoE, IPoA, Bridge Ethernet: IPoE, PPPoE, Bridge