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Web-based Configuration Guide

AR650, AR1600, and AR6100 V300R003

This document describes how to configure and maintain your routers using the web platform.
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Huawei uses machine translation combined with human proofreading to translate this document to different languages in order to help you better understand the content of this document. Note: Even the most advanced machine translation cannot match the quality of professional translators. Huawei shall not bear any responsibility for translation accuracy and it is recommended that you refer to the English document (a link for which has been provided).
DNS

DNS

Context

Domain Name System (DNS) is a distributed database used in TCP and IP applications and completes resolution between IP addresses and domain names. Users can use the simple and meaningful domain names instead of the complicated IP addresses to access hosts. The DNS server then resolves the domain name into a correct IP address.

The device can parse IPv4 and IPv6 addresses.

DNS proxy is used to forward DNS request and reply packets between the DNS client and DNS server. The DNS client sends DNS request packets to the DNS proxy. The DNS proxy forwards DNS request packets to the DNS server and sends reply packets to the DNS client. After DNS proxy is enabled, if the IP address of the DNS server changes, you only need to change the configuration on the DNS proxy.

Procedure

  • Creating DNS configuration
    1. Log in to the web platform and choose IP Service > DNS > DNS, as shown in Figure 13-9.

      Figure 13-9  DNS page

    2. Set DNS proxy to Enable in the DNS Setting area, and click Apply.
    3. Configure an IP address for the DNS server in the DNS Server Configuration List(IPv4 Address) or DNS Server Configuration List(IPv6 Address) area based on the IP address type.

      • To configure an IPv4 address for the DNS server, click Create in the DNS Server Configuration List(IPv4 Address) area, and enter an IPv4 address in the Create DNS Server IPv4 Address dialog box that is displayed.

      • To configure an IPv6 address for the DNS server, click Create in the DNS Server Configuration List(IPv6 Address) area, and enter an IPv6 address in the Create DNS Server IPv6 Address dialog box that is displayed.

    4. Click OK. The default obtaining mode of the DNS server IP address is Static.
    5. Click Create in the Domain Name Suffix List area, and set Domain name suffix in the Create Domain Name Suffix dialog box that is displayed.

    6. Click OK. The default obtaining mode of the DNS domain name is Static.

      Table 13-9 describes the parameters.

      Table 13-9  DNS parameters

      Parameter

      Description

      DNS server IPv4 address

      IPv4 address of a DNS server. This parameter is displayed after you click Create in the DNS Server Configuration List(IPv4 Address) area.
      NOTE:
      A maximum of six DNS server IPv4 addresses can be configured. A previous configured DNS server takes priority over a later one. A device sends domain name resolution requests to DNS servers based on their priorities in descending order.

      DNS server IPv6 address

      IPv6 address of a DNS server. This parameter is displayed after you click Create in the DNS Server Configuration List(IPv6 Address) area.
      NOTE:
      A maximum of six DNS server IPv6 addresses can be configured for DNS servers. A previous configured DNS server takes priority over a later one. A device sends domain name resolution requests to DNS servers based on their priorities in descending order.

      Domain name suffix

      DNS domain name suffix configured on the DNS client. You can pre-configure domain name suffixes. You only need to enter partial content of a domain name, and the system adds a suffix to the domain name for resolution.
      NOTE:
      A maximum of 10 DNS domain names can be configured.

  • Deleting DNS configuration
    1. Log in to the web platform and choose IP Service > DNS > DNS.
    2. Select the check box of a DNS server IP address in the DNS Server Configuration List(IPv4 Address) or DNS Server Configuration List(IPv6 Address) area, and click Delete.
    3. In the dialog box that is displayed, click OK.
    4. Select the check box of a domain name suffix in the Domain Name Suffix List area, and click Delete.
    5. In the dialog box that is displayed, click OK.
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Updated: 2019-04-12

Document ID: EDOC1100041803

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