日啪 日日啪在线影院日日拍日日啪在线视频日曰啪 日日啪在线影院北京金融对外开放送大礼包:户口、住房居住支持

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︰

  在與大自然的搏斗中,漢人。羅馬人盡管已經是最強大的種族,依舊處于劣勢。   怎麼說呢,就是由幾個鐵片鏈接成的一個東西,僅僅能護住要害防護力非常的有限,最多能把必死的傷弄成隔幾天再死的傷,隔幾天再死的傷或許能活下來,重傷還是重傷,輕傷還是輕傷,不會有什麼改變。日啪 日日啪在线影院 日日拍日日啪在线视频   霍去病笑道︰“你以後就該這麼想,你話里的遍身羅綺者,就有你一份。”   霍去病獰笑道︰“看來我們三兄弟還沒被董君看在眼里,再加一個兄弟如何?”日曰啪 日日啪在线影院   東西吃下去了,原本就大肚皮就鼓的更大了,人也變得如同一個不倒翁顯得更加滑稽。
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