久久精品热只有精品免费观看99热只有精品热99re久久精品韩国外长:或视情况考虑将韩日军情协定作废

We are responsible for global coordination of the Internet Protocol addressing systems, as well as the Autonomous System Numbers used for routing Internet traffic.

Currently there are two types of Internet Protocol (IP) addresses in active use: IP version 4 (IPv4) and IP version 6 (IPv6). IPv4 was initially deployed on 1 January 1983 and is still the most commonly used version. IPv4 addresses are 32-bit numbers often expressed as 4 octets in “dotted decimal” notation (for example, 192.0.2.53). Deployment of the IPv6 protocol began in 1999. IPv6 addresses are 128-bit numbers and are conventionally expressed using hexadecimal strings (for example, 2001:0db8:582:ae33::29).

Both IPv4 and IPv6 addresses are generally assigned in a hierarchical manner. Users are assigned IP addresses by Internet service providers (ISPs). ISPs obtain allocations of IP addresses from a local Internet registry (LIR) or National Internet Registry (NIR), or from their appropriate Regional Internet Registry (RIR):

發布時間︰

  六個使者的頭顱就掛在於單的軍帳外邊,腥臭至極,於單卻似乎沒有任何不適。   趙破奴幽幽的道︰“他們會復仇的。”久久精品热只有精品   唯獨他,因為那一幕,被謝長川將他以前立下的功勞一筆勾銷了。免费观看99热只有精品   甦稚這幾天很害怕,總是跟在雲瑯的身邊,她從老宦官的眼神中看到了威脅。   空泛的思想,也造就了畸形的追求,中華史書上有層出不窮的計謀,有眼花繚亂的變化,有深沉的比黑洞還要黑暗的時代英雄。热99re久久精品   大鬼巫抱著白骨杖呵呵笑道︰“拿什麼奪?”
Map of RIRs
RegistryArea Covered
AFRINICAfrica Region
APNICAsia/Pacific Region
ARINCanada, USA, and some Caribbean Islands
LACNICLatin America and some Caribbean Islands
RIPE NCCEurope, the Middle East, and Central Asia

Our primary role for IP addresses is to allocate pools of unallocated addresses to the RIRs according to their needs as described by global policy and to document protocol assignments made by the IETF. When an RIR requires more IP addresses for allocation or assignment within its region, we make an additional allocation to the RIR. We do not make allocations directly to ISPs or end users except in specific circumstances, such as allocations of multicast addresses or other protocol specific needs.

IP Address Allocations

Internet Protocol Version 4 (IPv4)

Internet Protocol Version 6 (IPv6)

Autonomous System Number Allocations

Procedures

Regional Internet Registry Creation

Technical Documentation