The October 2015 edition of the Marina IP stack for Apple II is now available. This project is a completely new TCP/IP networking implementation written in 6502 assembly language for the Apple II series. The Uthernet card is the network interface used, and programs interface with a Berkeley sockets-style API. Marina is not complete, for it has only a UDP implementation, and not TCP, but it does have a good DNS resolver and DHCP client.
The October 2015 edition of Marina adds Multicasting level 1 conformance and several improvements to the ARP and ICMP implementations. This latest edition also includes many other changes and improvements which are noted at the end of the manual. The development environment is now completely changed over to ProDOS Merlin Pro. Visit the Marina web site to download the new binary, source code, and manual.