Configuring the DNS server

A DNS server is required in the following situations:

• The TFTP server does not have a host name file. However, devices need to perform the following tasks:

  • Use their IP addresses to obtain their host names.

  • Obtain configuration files named in the format of host name.cfg from the TFTP server.

• The DHCP server assigns the TFTP server domain name through the DHCP reply message. Devices must use the domain name to obtain the IP address of the TFTP server.