综合2017亚洲男人天堂天堂日本一本道高清无码AV大疆即将发布Mavic Air 2无人机

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):

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  曹襄搖頭道︰“亞父跟母親今日不見人。”   很早以前師傅就說過,研究的方向有無數個,不管那一種其實都是對的,衡量學術研究不能只看他能不能賺錢,要看他對推動人間生產力有沒有效果。综合   “不算霍光,張安世,也不算家里的那些小子,還有十七個。”2017亚洲男人天堂天堂   匈奴使者到了長安,長安令遵照皇帝旨意,開放長安城三天,幾乎所有的勛貴們都去了長安城,目睹匈奴人第一次朝貢大漢。   雲瑯听了弟子的吹捧哈哈大笑道︰“對陛下來說,一個雲瑯都嫌多,遑論十個,如果真的有十個,也一定會被陛下殺掉九個,留下一個研究研究。”日本一本道高清无码AV   大漢國至今還沒有出台任何一部保護他們權益的律法。
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