Xyria:DNSd is an high performance and secure DNS-Server for Unix (currently Linux, OpenBSD, Solaris) written in C. DNSd is IPv6 ready and supports load ballancing via round-robbin.
SGNP is a proposed grid naming standard providing (1) Scalable, global namespace; (2) Secure communication among resources/services (no central authority), and (3) Reliable rebind capability in the event of migration, failure, replication, etc.
The paarpd provides ARP services for "Classical IP and ARP over ATM" networks (RFC1577, RFC2225) according to an administratively defined policy to provide a more secure and reliable service while still being RFC compliant.