8. Router Advertisement Header
• M
– 1 : get Prefix from DHCP server
– 0 : get Prefix from Router
• O
– 1 : get DNS from DHCP server
– 0 : get DNS from Router
15. Auto Configuration Process
• Allows a host to create a unicast address from:
– Its MAC address
– Prefixes sent by neighbor routers
• Several steps:
– Link-local addresses creation
– Duplicate addresses detection (DAD)
– Discover the routers on-link (RS/RA)
– " Configure hosts global addresses
– Configure other parameters: default router, link MTU, …
• Addresses are not automatically registered in the DNS
– Need for DNS Dynamic Update (RFC 2136 and RFC 3007)
23. RIPng
• Same as IPv4
– Distance vector, radius of 15 hops, split horizon, and
– poison reverse
– Based on RIPv2
• Updated features for IPv6
– IPv6 prefix, next-hop IPv6 address
– Uses the multicast group FF02::9 for RIP updates
– Uses IPv6 for transport
– Updates are sent on UDP port 521
• Named RIPng
24. OSPFv3
• Based on OSPFv2, with enhancements
• Distributes IPv6 prefixes
• Runs directly over IPv6
• Ships in the night with OSPFv2
• Adds IPv6-specifific attributes:
– 128-bit addresses
– Link-local address
– Multiple addresses and instances per interface
– Authentication (now uses IPsec)
– OSPFv3 runs over a link, rather than a subnet
25. DNSv6
• Domain Name System version 6
– Mapping Domain name and IP
• Client / Server Architecture
• Application
– ISC BIND-9.2.2 (Linux)
• Support IPv4 & IPv6 DNS query
• AAAA records
• renumbering
– Windows Server 2008
26. IPv6 to IPv4 Transition
• Dual Stack
– Support IPv4 & IPv6 on the same time
– IPv4 only, IPv6 only, Dual Stack
– Need one IPv4 and one IPv6 address
28. IPv6 to IPv4 Transition
• Translator
– Network Address Translation – Protocol
Translation
– Like IPv4 NAT
– IPv4 Address pool + sock port number
– It is deprecated on 2007/7