Introduction To Ipv6 Dns; Ipv6 Dns Supported By The S9300&S9300E; Configuring Ipv6 Dns; Establishing The Configuration Task - Huawei S9300 Configuration Manual

S9300&S9300E Terabit Routing Switch
Configuration Guide - IP Service

10.1 Introduction to IPv6 DNS

After each host on the Internet is assigned a domain name, you can set up mapping between the
domain name and IP address of a host. In this manner, you can use domain names, which are
easy to memorize and are of significance, instead of complicated IP addresses.
IPv6 DNS has two resolution modes: dynamic IPv6 DNS resolution and static IPv6 DNS
resolution. To resolve a domain name, the system first uses static IPv6 DNS resolution. If this
mode fails, the system uses dynamic IPv6 DNS resolution. To improve resolution efficiency,
you can put common domain names in a static domain name resolution table.
10.2 IPv6 DNS Supported by the S9300&S9300E
IPv6 domain name resolution can be performed in either dynamic mode or static mode.
IPv6 domain name system (DNS) is similar to IPv4 DNS. For configurations of IPv4 DNS, refer
to "DNS

10.3 Configuring IPv6 DNS

By configuring the IPv6 DNS, you can set up a mapping between a domain name and an IPv6
address. In this manner, you can enable the device to communicate with other devices.

10.3.1 Establishing the Configuration Task

This section describes the applicable environment, pre-configuration tasks, data preparation, and
configuration procedure for configuring the IPv6 DNS.
Applicable Environment
DNS needs to be configured if the local users log on to a device using domain names to
communicate with other devices. The IPv6 DNS entries show the mapping between domain
names and IPv6 addresses.
If users seldom use the domain name to access other devices, or if the DNS server is unavailable,
a static DNS needs to be configured. To configure a static IPv6 DNS, the network administrator
needs to know the relation between domain names and IPv6 addresses, and manually modify
the IPv6 DNS entry when the relation changes.
If the users need to use the domain name to access many devices, and the DNS server is available,
a dynamic DNS can be configured. The dynamic DNS needs to be supported by a DNS server.
Pre-configuration Tasks
Before configuring IPv6 DNS, configure the route between a local device and a DNS server.
Data Preparation
To configure IPv6 DNS, you need the following data.
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