IPv6 implementations (3) Applications: anything you want! Either from master distribution, or patch apache2 bind9 squid mozilla lynx grail w3m kaffe(java interpreter) perl ruby python icecast ... Routing daemons Similar to IPv4, as we have limited set of algorithms RIPng: similar to RIP BGP4+: multiprotocol version of BGP OSPFv6 (OSPFv3): similar to OSPF zebra/quagga Advanced features There are inherently difficult problem remains Experimental code is available diffserv, IPsec policy control, mobile-ipv6