亚洲色图欧美色图亚洲情色网亚洲黄色图片复星旅文钱建农:中期业绩扭亏 启动两个新的旅游项目

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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我非常羞愧。“是的,上校先生,當然,我在出城去之前,是喝了幾杯 甜酒,在城外,吃飯??吃那頓飯的時候喝了不少??不過??” 嗎?”亚洲色图欧美色图 劣質煙草的刺鼻怪味從這半明半暗的洞穴里向我迎面撲來。屋子後邊是 個酒櫃,前面是張桌子,幾個築路工人坐在桌子旁邊玩紙牌。靠著櫃台,站 著一個輕騎兵,背朝向我,正在和老板娘說笑。現在他感到背後有風,可是 他剛轉過身來一看,頓時嚇得張口結舌︰他馬上立正,腳後跟啪地並在一起。 他怎麼會嚇成這樣?啊,原來如此,他大概把我當作一個負責檢查的軍官, 而他自己大概早就該躺在營房的床鋪里睡覺了。老板娘也心神不定地拿眼楮 直往這兒瞟,築路工人放下紙牌不玩了,我身上大概有什麼東西引人注目。 現在我才想起來了,——可惜太晚了——這無疑是只有士兵才來光顧的一家 酒店。我作為軍官是根本不許踏進這種酒店的。我本能地轉身想走。亚洲情色网 床??原因是這樣??我是在??啊,對了,我是在斯察斯勞。不過我在這 里可是一個人也不認識啊,誰會半夜三更打電話給我呢?——胡鬧!現在大 概起碼是午夜時分了吧。可是門房在催我︰“請您快點,少尉先生,維也納 來的長途電話,名字我沒听清楚。”亚洲黄色图片 架一下,他們還嫌不足。好心的費倫茨真誠地對這事感到好奇,他拍拍我的 肩膀。
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