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.