FreeACS is Free Auto-Configuration Server. The project has just started, but we hope (and plan) to provide a free (GPL) full implementation of the CPE WAN Management Protocol (CWMP).
Free open-source 100% Java DHCP Server: general purpose DHCP server ranging from a simple LAN server to a wide range WAN server handling millions customers. Focused on reliability, performance and expandability. It uses the dhcp4java api.
p2p-fs is a Peer to Peer file system in user space, using FUSE. Allows you to share files over an LAN and/or WAN. Can be mounted as a normal file system under Linux.