Cyan Technology have ported the popular uIP stack and made it available as open source. This stack concentrates on implementing all of the requirements of RFC1122 for full host-to-host interoperability. The stack (and source code) is completely free of charge. Full details are below.

Open Source Features

• Source code available in ANSI C
• Designed to be RFC1122 compliant for host-to-host interoperability
• Does not Suffer from 'Small Stack' Problems
• Peers are not required to be a fully implemented TCP/IP stack
• Supports DHCP Client, HTTP Server, FTP Server, TCP, IP, ICMP, ARP and subset of UDP

Support Applications

• Dumper Utility - Monitors Ethernet frames and sends them to the serial port
• Unit Test for Ethernet MAC - loop back mode
• Web server
• Telnet server

Cyan Technology has built an HTTP server project  example using uIP Stack Open Source.

Please visit Cyan official uIP Stack web page for full details.