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Configuration Guide - IP Service

S2720, S5700, and S6720 V200R013C00

This document describes the configurations of IP Service, including IP address, ARP, DHCP, DHCP policy VLAN, DNS, mDNS gateway, mDNS relay, UDP Helper, IP performance optimization, IPv6, DHCPv6, IPv6 DNS, IPv6 over IPv4 tunnel, and IPv4 over IPv6 tunnel.
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Application Scenarios for DNS

Application Scenarios for DNS

Figure 5-2 shows typical networking of a DNS client.

Figure 5-2  Typical networking of a DNS client

As shown in Figure 5-2, the device functions as a DNS client and can dynamically obtain the corresponding IP address of a domain name from a DNS server. This facilitates user communication.

  • If you seldom use domain names to visit other devices or no DNS server is available, configure static DNS on the DNS client. To configure static DNS, you must know the mappings between domain names and IP addresses. If a mapping changes, manually modify the DNS entry on the DNS client.
  • If you want to use domain names to visit many devices and DNS servers are available, you can configure dynamic DNS. Dynamic DNS requires DNS servers.
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Updated: 2019-04-20

Document ID: EDOC1100065678

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