Search results
Results From The WOW.Com Content Network
IANA IPv6 Special-Purpose Address Registry This page was last edited on 26 January 2025, at 04:36 (UTC). Text is available under the Creative ... Reserved IP addresses.
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 ...
In the Domain Name System (DNS), hostnames are mapped to IPv6 addresses by AAAA ("quad-A") resource records. For reverse resolution, the IETF reserved the domain ip6.arpa, where the name space is hierarchically divided by the 1-digit hexadecimal representation of nibble units (4 bits) of the IPv6 address.
The special behaviour for this type of addresses, as required at that time, [5] was lifted in 2006 and the block returned to regular global unicast. [6] In October 2005, the IETF reserved the address block fc00::/7 for use in private IPv6 networks and defined the associated term unique local addresses. [1]
In the Internet Protocol Version 6 (IPv6), the address block fe80:: / 10 has been reserved for link-local unicast addressing. [ 2 ] : 2.4 Of the 64 bits of a link-local addresses' network component, the most significant 10 bits (1111111010) correspond to the IANA-reserved "global routing prefix" for link-local addresses, while the "subnet ID ...
In IPv6, the block fe80:: / 10 is reserved for IP address autoconfiguration. [8] The implementation of these link-local addresses is mandatory, as various functions of the IPv6 protocol depend on them.
IP version Description Status 0: Internet Protocol, pre-v4: Reserved. [3]1–3: Unassigned. 4: Internet Protocol version 4 (IPv4) [1]: Active. 5: Internet Stream Protocol or ST: Obsolete; superseded by ST-II.
Multicast address scope IPv6 address [note 1] IPv4 equivalent [19]: §8 Scope [28] Purpose ffx0::/16, ffxf::/16: Reserved ffx1::/16: Interface-local Packets with this destination address may not be sent over any network link, but must remain within the current node; this is the multicast equivalent of the unicast loopback address. ffx2::/16: ...