Operation Manual – IPv6 ManagementH3C S5100-SI/EI Series Ethernet Switches Chapter 1 IPv6 Configuration1-103) Node A learns that the IPv6 address is being used by node B after receiving theNA message from node B. Otherwise, node B is not using the IPv6 address andnode A can use it.1.1.4 Introduction to IPv6 DNSIn the IPv6 network, a Domain Name System (DNS) supporting IPv6 converts domainnames into IPv6 addresses. Different from an IPv4 DNS, an IPv6 DNS converts domainnames into IPv6 addresses, instead of IPv4 addresses.However, just like an IPv4 DNS, an IPv6 DNS also covers static domain nameresolution and dynamic domain name resolution. The function and implementation ofthese two types of domain name resolution are the same as those of an IPv4 DNS. Fordetails, refer to DNS Operation in this manual.Usually, the DNS server connecting IPv4 and IPv6 networks contain not only A records(IPv4 addresses) but also AAAA records (IPv6 addresses). The DNS server canconvert domain names into IPv4 addresses or IPv6 addresses. In this way, the DNSserver has the functions of both IPv6 DNS and IPv4 DNS.1.1.5 Protocols and StandardsProtocol specifications related to IPv6 include:z RFC 1881: IPv6 Address Allocation Managementz RFC 1887: An Architecture for IPv6 Unicast Address Allocationz RFC 1981: Path MTU Discovery for IP version 6z RFC 2375: IPv6 Multicast Address Assignmentsz RFC 2460: Internet Protocol, Version 6 (IPv6) Specification.z RFC 2461: Neighbor Discovery for IP Version 6 (IPv6)z RFC 2462: IPv6 Stateless Address Autoconfigurationz RFC 2463: Internet Control Message Protocol (ICMPv6) for the Internet ProtocolVersion 6 (IPv6) Specificationz RFC 2464: Transmission of IPv6 Packets over Ethernet Networksz RFC 2526: Reserved IPv6 Subnet Anycast Addressesz RFC 3307: Allocation Guidelines for IPv6 Multicast Addressesz RFC 3513: Internet Protocol Version 6 (IPv6) Addressing Architecturez RFC 3596: DNS Extensions to Support IP Version 61.2 IPv6 Configuration Task ListComplete the following tasks to configure IPv6:Task RemarksConfiguring an IPv6 Unicast Address RequiredConfiguring IPv6 NDP Optional
