一本道AV免费高清无码一本道DVD在线一本道久久综合久久爱|一本道dvd在线|色久久中文综合网米波雷达能否发现F22?美军淘到俄制雷达测试后炸掉

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︰

  “我這幾年的例份幫忙算一下。”   狗子在蘭英蘭喬渴望的目光中輕蔑的將一把銅錢丟在老婦人的首飾攤子上道︰“最好的簪子給耶耶來兩條。”一本道AV免费高清无码   湊到紅袖身邊從懷里掏出五個乳白色的羊骨節放在紅袖手里,諂媚的道︰“禮物早就備好了,匈奴人手里也沒有這麼好的東西。”一本道DVD在线   廚娘超屋子里探探腦袋,沒看見蘭英,蘭喬,就不滿的道︰“匈奴女人都這麼懶嗎?”   何愁有笑道︰“那是因為你家主子不想害我,如果你家主子要你害我,老夫覺得你一定會愉快的去完成這個重任的?”一本道久久综合久久爱|一本道dvd在线|色久久中文综合网   曹襄指指胸口補充道︰“很不舒服。”
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