免费大香蕉新视频2018大香蕉狠狠啪大香蕉伊人在线75收评:三大股指齐收跌沪指跌0.3% 稀有金属板块爆发

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︰

  眼見烏雲過來的時候,雲瑯就知道不好,這片烏雲來的又急又猛,尤其是在夏收這個時候,來一場暴雨那是再尋常不過的事情,如果引發山洪,在外面放養雞鴨的孟大,孟二就會有很大的危險,這才騎著馬來找孟大孟二,希望能幫他們一把。   這導致的結果很明顯,他們的子孫被傷害的很慘,據說這個時代的羅馬勛貴很少能生出健康的孩子。免费大香蕉新视频   李少君並不回答阿嬌的問話,眼見外面的冰雹再一次變成了瓢潑大雨,起身向劉徹施禮道︰“老夫要去渡劫了!”2018大香蕉狠狠啪   “我喜歡吃,自然考校吃食,有人喜歡種田,自然就考校種田,我出山門的時候,有一位老師兄在海水里種出稻子來了,家師欣喜若狂,然後就把我踢出山門了。”   至于還在哭天搶地的哀嚎那些死去的雞鴨的孟大,孟二,則被送上了一輛馬車。大香蕉伊人在线75   雲瑯撓撓下巴道︰“我知道啊,那個山洞里發生了太多的不足以為外人道的事情,所以在一場地龍翻身的事故中,整座山塌下來了……”
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