伊人大杳蕉情侣成综合丁香五月开心婷婷综合伊人综合合线在线“雪龙2”号将开始首航 “双龙探极”时代将来临

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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下一站是布律恩,我跳下火車,跑到車站的電報局去。出了什麼事了? 等我一覺醒來,已是晴日臨窗。一看表︰十點半。我的天,我得馬上去 報到,這可是上校的命令!我還來不及開始思考個人的事,部隊的事、公事 又在我心里自動地發生作用了。我披上制服,穿戴整齊,急步跑下樓梯。門 房想攔住我。不行一別的事情一律回頭再說!首先去報到,這是我以人格擔 保,答應上校的。伊人大杳蕉情侣成综合 “是的,恢復健康,”她吁了口氣,虔誠地看著我,仿佛我的願望具有 決走生死的威力。“為你而健康。”丁香五月开心婷婷综合 出來,她羞于開口。最後她終于試探著說道︰ “我??我發現??我已經感覺到,這準是非常緊急的事情??如果有 章的行徑,馬上就刮來狂風暴雨,或者不如說是一股夾雜著咒罵之聲的污泥 濁水的洪流劈頭蓋腦地沖來。在那箍得很緊的軍服領子下面,喉結好像患了 猝發中風癥似的鼓了起來,宛如一個突發的腫瘤,剃短了的頭發下面的額頭 漲得血紅,粗大的青筋一直爬到太陽穴上。然後他就用他震耳的啞嗓子破口 大罵,他把整桶的髒水穢物都傾倒在那個可能有過失也可能無辜的犧牲品的 頭上。有時候他的話實在不堪入耳,軍官們都惱火地低頭看著地上,因為他 們當著士兵的面為他感到羞恥。伊人综合合线在线
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