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The GGSN is responsible for IP address assignment and is the default router for the connected user equipment (UE). The GGSN also performs authentication and charging functions. Other functions include subscriber screening, IP pool management and address mapping , QoS and PDP context enforcement.
This is a list of countries by IPv4 address allocation. The Internet Assigned Numbers Authority (IANA) distributes large blocks of addresses to regional Internet registries (RIRs), which then assign them to national Internet registries and local Internet registries within their respective service regions. [ 1 ]
"IANA IPv4 Address Space Registry". Internet Assigned Numbers Authority (IANA). 21 December 2017 The authoritative up-to-date list of IANA assignments. "ARIN Whois Database". American Registry for Internet Numbers (ARIN) Historical IP address lists: "INTERNET PROTOCOL ADDRESS SPACE".
The 234.0.0.0 / 8 range is assigned as a range of global IPv4 multicast address space provided to each organization that has / 24 or larger globally routed unicast address space allocated; one multicast address is reserved per / 24 of unicast space. [17]
RIPE NCC (Réseaux IP Européens Network Coordination Centre) is the regional Internet registry (RIR) for Europe, the Middle East, and parts of Central Asia. Its headquarters are in Amsterdam , Netherlands, with a branch office in Dubai , UAE.
Link-local addresses may be assigned manually by an administrator or by automatic operating system procedures. In Internet Protocol (IP) networks, they are assigned most often using stateless address autoconfiguration, a process that often uses a stochastic process to select the value of link-local addresses, assigning a pseudo-random address that is different for each session.
An Internet Protocol address (IP address) is a numerical label such as 192.0.2.1 that is assigned to a device connected to a computer network that uses the Internet Protocol for communication. [ 1 ] [ 2 ] IP addresses serve two main functions: network interface identification , and location addressing .
The Internet Assigned Numbers Authority (IANA) is a standards organization that oversees global IP address allocation, autonomous system number allocation, root zone management in the Domain Name System (DNS), media types, and other Internet Protocol–related symbols and Internet numbers.