久草热久草在线视频久草在线新时代的视觉体验标普:上调融信中国评级至“B+” 展望稳定

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︰

  東方朔看著劉據愣了片刻,對著壺嘴喝了半壺酒之後搖頭道︰“沒用的,我屁股上已經烙上雲氏的烙印了,即便是到了你那里,也不會獲得信任。如果在昌邑王沒有被陛下送到長門宮,為太子殿下效力是東方朔的榮光所在。現在,不可能了。我回到長安之後,將會繼續成為衛將軍府的幕僚,今日過來,就是想大吃一頓,安慰一下某家的饑腸。” 久草热久草在线视频   “耶耶,常用嗎?我是說這種法子常用嗎?”久草在线   兩人絮絮叨叨的說著閑話的功夫,霍去病坐在輪椅上過來了。新时代的视觉体验   梁贊就是看到了這一幕才對西北理工有些失望,他覺得人性善惡比富足與否更加的重要。
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