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IPv6 addresses are assigned to organizations in much larger blocks as compared to IPv4 address assignments—the recommended allocation is a / 48 block which contains 2 80 addresses, being 2 48 or about 2.8 × 10 14 times larger than the entire IPv4 address space of 2 32 addresses and about 7.2 × 10 16 times larger than the / 8 blocks of IPv4 ...
A solicited-node multicast address is an IPv6 multicast address used by the Neighbor Discovery Protocol to determine the link layer address associated with a given IPv6 address, which is also used to check if an address is already being used by the local-link or not, through a process called DAD (Duplicate Address Detection). The solicited-node ...
A new Home Address option for the Destination Options header; A new Type 2 Routing header; New Internet Control Message Protocol for IPv6 (ICMPv6) messages to discover the set of home agents and to obtain the prefix of the home link; Changes to router discovery messages and options and additional Neighbor Discovery options
IPv6 uses a 64-bit Modified Extended Unique Identifier (Modified EUI-64) in the lower half of some IPv6 addresses. A Modified EUI-64 is an EUI-64 with the U/L bit inverted. [6] There are other identifiers that may be formed using the OUI but those listed above are the most commonly used.
Endpoint ID (EID): An EID is an IPv4 or IPv6 address used in the source and destination address fields of the first (most inner) LISP header of a packet. Egress Tunnel Router (ETR): An ETR is a device that is the tunnel endpoint; it accepts an IP packet where the destination address in the "outer" IP header is one of its own RLOCs. ETR ...
Obsolete; merged into IPv6 in 1995. [3] 6: Internet Protocol version 6 (IPv6) [2] Active. 7: TP/IX The Next Internet (IPv7) [5] Obsolete. [6] 8: P Internet Protocol (PIP) [7] Obsolete; merged into SIP in 1993. 9: TCP and UDP over Bigger Addresses (TUBA) Obsolete. [8] 9: IPv9: April Fools' Day joke. [9] 9: Chinese IPv9: Abandoned. 10–14 ...
Such a dual-stack DNS server holds IPv4 addresses in the A records and IPv6 addresses in the AAAA records. Depending on the destination that is to be resolved, a DNS name server may return an IPv4 or IPv6 IP address, or both. A default address selection mechanism, or preferred protocol, needs to be configured either on hosts or the DNS server.
A Cryptographically Generated Address is an IPv6 address whose interface identifier has been generated according to the CGA generation method. The interface identifier is formed by the least-significant 64 bits of an IPv6 address and is used to identify the host's network interface on its subnet.