伊人影院蕉久影院在线思思99热久久精品在线6一本道加勒比久在线dvd港警使出卧底战术便衣出击 暴徒受重挫行动惨败

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︰

  雲瑯吧嗒吧嗒嘴巴,有些憂愁的道︰“不管怎麼說,我們這一仗是打定了,可憐我那些以為自己將要回到長安享福的部下啊。”   雲瑯笑道︰“我這人因為某種原因,總想見識一下神靈,心中有很多的疑問還要請神靈解惑。如果我們真的因為點燃了草原荼毒萬物,從而獲罪于天,我希望第一把火由我來點。”伊人影院蕉久影院在线   長長的帶著強烈的波西米亞風情的長袍只要是胡人沒有不喜歡的。思思99热久久精品在线6   “據說,右賢王準備繞過白登山。”   何愁有憤憤的起身,回到了船艙,只傳來一聲硬邦邦的話語︰“你那麼聰慧,自然能想到!”一本道加勒比久在线dvd   雲瑯面無表情的道︰“如果木排能到壺口以北,我就算是成功了,這一路上我們要經過,朔方,雲中,定襄,雁門,上郡,全是我大漢的軍事重鎮。這些地方的大軍不事生產,只有耗費,我們的糧食也是要供應這些地方。只要能達到壺口以北,我們運送的軍糧也就所剩無幾了。剩余物資不會太多,至于木排,就讓它繼續順流而下,摔碎了也沒什麼,反正不到關中,那些木頭一點用處都沒有。如果摔不碎,那就好辦了,我們在壺口下游再把木頭撈起來,重新捆扎好,繼續沿著大河進關中也就是了。”
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