亚洲天堂2017无码av欧美亚洲综合另类亚洲色图金龙鱼IPO:净利增速放缓 龙头产品转基因原料高达70%

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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  現在,劉徹可以向天下所有人宣告他的功業了。   什麼,恆天王,狼神王……之類的家伙霍去病弄死過很多,這樣的造反很多人甚至都沒有听說過。亚洲天堂2017无码av   這讓雲瑯大感遺憾,原以為自己這次可以看到內容了,結果四處尋找了之後,根本就沒有這塊碑!(玉皇頂上的無字碑據傳說是秦始皇樹立的,作者看過這塊碑,不這樣認為。)欧美亚洲综合另类   應聲蟲一般的趙周立刻轉身去辦理政務了,皇帝也不聲不響的下了高台,鑽進了自己的行宮,似乎不想再見別人。   雲瑯絕了你心頭的僥幸,為了濟北國,朕可以殺了劉胡,你以為為了永安縣,朕就殺不了你一個小小的永安侯嗎?”亚洲色图   桌案上擺滿了文書,她剛剛看完了一卷,提筆批閱之後就放在一邊。
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