Network requirements
When the IP address of the DNS server changes, you must configure the new IP address of the DNS server on each device on the LAN. To simplify network management, you can use the DNS proxy function.
As shown in Figure 48:
Specify Device A as the DNS server of Device B (the DNS client). Device A acts as a DNS proxy. The IP address of the real DNS server is 4.1.1.1.
Configure the IP address of the DNS proxy on Device B. DNS requests of Device B are forwarded to the real DNS server through the DNS proxy.
Figure 48: Network diagram
