link-local address, hosts can communicate over this link but only locally; Access to other networks and the Internet is not possible. There are some link-local IPv4 address implementations available: Apple Mac OS and MS Windows have supported link-local addresses since Windows 98 and Mac OS 8.5 (both released in 1998). Apple released its open-source implementation in the Darwin bootp package. Avahi contains an implementation of IPv4LL in the avahi-autoipd tool. Zero-Conf IP (zcip) BusyBox can embed a simple IPv4LL implementation. Stablebox, a fork from Busybox, offers a slightly modified IPv4LL implementation named llad. Zeroconf is a package based on Simple IPv4LL, a shorter implementation by Arthur van Hoff. The above implementations are all stand-alone daemons or plugins for DHCP clients that only deal with link-local IP addresses. Another approach is to include support in new or existing DHCP clients: Elvis Pfützenreuter has written a patch for the uDHCP client/server. dhcpcd is an open source DHCP client for Linux and BSD that includes IPv4LL support. It is included as standard in NetBSD. Neither of these implementations addresses kernel issues like broadcasting ARP replies or closing existing network connections. See also Bonjour Sleep Proxy Wireless Zero Configuration Peer Name Resolution Protocol (PNRP) References Notes Sources External links , a pure Java implementation of mDNS/DNS-SD. , a pure Python implementation of mDNS/DNS-SD. , a cross platform (Linux, MS Windows, Apple Mac), unified Mono/.NET library for Zeroconf, supporting both Bonjour and Avahi. , a cross-platform wxWidgets-based service discovery module without external dependencies. . . . , including Internet drafts. , DNS based Service Discovery . Apple Inc. software Computer configuration Domain Name System Network protocols Windows communication and services