... control 5) 4-port 10/100M switches integrated 6) CSMA/CA, CSMA/CD, TCP/IP, PPPoE, DHCP, ICMP, NAT supported 7 ... , IEEE 802.3u, IEEE 802.3x, IEEE 802.1X, CSMA/CA, CSMA/CD, TCP/IP, DHCP, ICMP, NAT, PPPoE 2) Data ... , IEEE 802.3u, IEEE 802.3x, IEEE 802.1x, CSMA/CA, CSMA/CD, TCP/IP, DHCP, ICMP, NAT, PPPoEPortsLAN4 10/100M ...