The NETGEAR WGR614L Open Source Wireless-G Router is an 802.11g wireless router that includes open-source code for Linux developers and open-source experts. The WGR614L is designed to let you customize it to your own specifications and create firmware for specialized applications.
Specifications
Product MPN
MPN
DHWGR614L100NAS
Key Features
Connectivity
Wireless
Router Functionalities 
Firewall · DHCP Server · VPN Pass-Thru
Interfaces
Built-In
4-port Built-In Switch
LAN Interfaces
10/100 Base-T
WAN Interfaces 
1 x 10/100 Base-T
Standards and Protocols
Routing Protocols
Static Routing
LAN Standards
IEEE 802.11g · IEEE 802.11b 2.4 Ghz 11 Mbs Wi-Fi
Protocols 
IPSec · TCP · DHCP · IP · PPTP · L2TP · PPPoE
Firewall / VPN
Firewall Features
MAC Address filtering · Stateful Packet Inspection (SPI) · URL Filtering · DoS Prevention · Content Filtering