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Configuration Guide - IP Service
S1720, S2700, S5700, and S6720 V200R011C10

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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IP Address Resolution

IP Address Resolution

To ensure that users can use the IP address normally, ensure that:

  • An IP address is a network layer address of a host. To transmit data packets to a destination host, the device must obtain the physical address of the host. Therefore, the IP address must be resolved to a physical address.

  • A host name is easier to remember than an IP address. Therefore, the host name needs to be resolved to the IP address.

On Ethernet, the physical address of a host is the MAC address. The DNS server resolves a host name to an IP address. ARP resolves an IP address to a MAC address. For details, see DNS Configuration and ARP Configuration.

Updated: 2020-02-26

Document ID: EDOC1000178170

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