chip:GS8120
•The ADSL router integrates a full-rate ADSL 2/2+ modem, router, firewall, 1 port
 10/100Mbps Ethernet switch into a single cost-effective product. Concurrent Ethernet is supported for flexibility in operating with a range of devices. Up to four computers can be plugged into the 4 ports directly and each can enjoy simultaneous independent Internet  access. 
•  Compatible with BT , AOL, Kingston & all other ISPs
•  Supports ADSL /ADSL2/ ADSL 2+
•  Rate adaptive, downstream up to 24 MB / upstream up to 1MB
•  Integrated 10/100 Mbps 4 Port Fast Ethernet switch (MDI/MDIX Auto Sensing)
•  Built–in NAT function (allow multiple PCs & devices to share single Internet connection)
•  Web based configuration & management
•  QoS Bandwidth management
•  MAC Address Filtering
•  UPnP (Universal Plug & Play)
•  VPN pass through (IPSec, PPTP)
•  Support SPI (State full Packet Inspection) Firewall
•  Support NAT & Firewall enable/disable
•  Support Virtual Server/Port Forwarding
•  Support DMZ host configuration
•  Support Up to 8 PVCs