How to Configure Cisco Router as DNS Client
Cisco routers can function both as DNS servers and as DNS clients. A DNS server plays an important role in mapping the IP addresses of host devices to their corresponding hostnames.
On the other hand, a DNS client is a network device capable of reaching other hosts on the network using their hostnames, not just with their IP addresses.
Link to blog post on this; https://netizzan.com/how-to-configure...