超碰免费成人在线视频大陆国产情侣偷拍视频男人都来的每日更新的免费在线视频网!商务部:一些企业将继续自美国进口部分农产品

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︰

  白衣傲王侯的事情幾乎不可能出現,即便是偶爾出現了,那也是那個白衣在拿自己的生命開玩笑。   “你確定能搶到?”超碰免费成人在线视频   君不密,則失臣;臣不密,則失身;幾事不密則成害。《易經》里面的這句話,雲瑯覺得就是給大漢人說的。大陆国产情侣偷拍视频   听了這話,其余三人都信服的點頭,就騙人這一項本事而言,雲瑯算得上技高一籌。   “你以為可以翅膀硬了,就能飛嗎?”長平蹲在地上,探出一根手指挑起雲瑯的下巴,輕蔑的道。男人都来的每日更新的免费在线视频网!   李敢從北大營回來之後,心情很沉重,這一次,北大營的四大將軍,各自派出了一支搶奪寶物的軍隊,每一支軍隊都是由北大營軍中的佼佼者構成的,他們甚至準備動用重型武器,包括弩車!
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