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Current Internet architectural documents observe that NAT is a violation of the end-to-end principle, but that NAT does have a valid role in careful design. [17] There is considerably more concern with the use of IPv6 NAT, and many IPv6 architects believe IPv6 was intended to remove the need for NAT. [18]
MOBILE IP Mobility (Min Encap) RFC 2004: 0x38 56 TLSP Transport Layer Security Protocol (using Kryptonet key management) 0x39 57 SKIP Simple Key-Management for Internet Protocol: RFC 2356: 0x3A 58 IPv6-ICMP ICMP for IPv6: RFC 4443, RFC 4884: 0x3B 59 IPv6-NoNxt No Next Header for IPv6: RFC 8200: 0x3C 60 IPv6-Opts Destination Options for IPv6 ...
NAT64 is an IPv6 transition mechanism that facilitates communication between IPv6 and IPv4 hosts by using a form of network address translation (NAT). The NAT64 gateway is a translator between IPv4 and IPv6 protocols, [1] for which function it needs at least one IPv4 address and an IPv6 network segment comprising a 32-bit address space.
This enables similar use cases as 6to4, where a single public IPv4 address gets translated into a prefix. This way, only one level of NAT is required and the devices do not need to do NAT66 internally if they need additional addresses, e.g. for P2P interfaces or docker containers.
RFC 7020 – The Internet Number Registry System; RFC 2101 – IPv4 Address Behaviour Today; RFC 2663 – IP Network Address Translator (NAT) Terminology and Considerations; RFC 3022 – Traditional IP Network Address Translator (Traditional NAT) RFC 3330 – Special-Use IPv4 Addresses (superseded) RFC 3879 – Deprecating Site Local Addresses
An IPv6 packet is the smallest message entity exchanged using Internet Protocol version 6 (IPv6). Packets consist of control information for addressing and routing and a payload of user data. The control information in IPv6 packets is subdivided into a mandatory fixed header and optional extension headers.
Mobile IP was designed to support seamless and continuous Internet connectivity. Mobile IP is most often found in wired and wireless environments where users need to carry their mobile devices across multiple LAN subnets. Examples of use are in roaming between overlapping wireless systems, e.g., IP over DVB, WLAN, WiMAX and BWA.
A unique local address (ULA) is an Internet Protocol version 6 (IPv6) address in the address range fc00:: / 7. [1] These addresses are non-globally reachable [2] (routable only within the scope of private networks, but not the global IPv6 Internet).