H3C Technologies H3C WX3000E Series Wireless Switches - Manual (Page 119)

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Dual stack
Dual stack is the most direct transition approach. A network node that supports both IPv4 and IPv6 is a
dual stack node. A dual stack node configured with an IPv4 address and an IPv6 address can forward
both IPv4 and IPv6 packets. For an upper layer application that supports both IPv4 and IPv6, either TCP
or UDP can be selected at the transport layer, whereas the IPv6 stack is preferred at the network layer.
Dual stack is suitable for communication between IPv4 nodes or between IPv6 nodes. It is the basis of all
transition technologies. However, it does not solve the IPv4 address depletion issue because each dual
stack node must have a globally unique IP address.
Tunneling
Tunneling is an encapsulation technology that utilizes one network protocol to encapsulate packets of
another network protocol and transfer them over the network.
NAT-PT
Network Address Translation – Protocol Translation (NAT-PT) is usually applied on a device between IPv4
and IPv6 networks to translate between IPv4 and IPv6 packets, allowing communication between IPv4
and IPv6 nodes. It performs IP address translation, and according to different protocols, performs
semantic translation for packets. This technology is only suitable for communication between a pure IPv4
node and a pure IPv6 node.
NOTE:
The switching engine on the WX3000E wireless switch does not support tunneling and NAT-PT.
Protocols and standards
Protocols and standards related to IPv6 include:
• RFC 1881, IPv6 Address Allocation Management
• RFC 1887, An Architecture for IPv6 Unicast Address Allocation
• RFC 1981, Path MTU Discovery for IP version 6
• RFC 2375, IPv6 Multicast Address Assignments
• RFC 2460, Internet Protocol, Version 6 (IPv6) Specification
• RFC 2464, Neighbor Discovery for IP Version 6 (IPv6)
• RFC 2462, IPv6 Stateless Address Autoconfiguration
• RFC 4443, Internet Control Message Protocol (ICMPv6) for the Internet Protocol Version 6 (IPv6)
Specification
• RFC 2464, Transmission of IPv6 Packets over Ethernet Networks
• RFC 2526, Reserved IPv6 Subnet Anycast Addresses
• RFC 3307, Allocation Guidelines for IPv6 Multicast Addresses
• RFC 3513, Internet Protocol Version 6 (IPv6) Addressing Architecture
IPv6 basics configuration task list
Complete the following tasks to perform IPv6 basics configuration: