Configure Dynamic Domain Name Resolution

Network Requirements

• The IP address of the DNS server is 1.0.0.3/24, the IP address of Device is 1.0.0.1/24, and the IP address of PC is 1.0.0.2/24.
• The DNS server, Device, and PC are interconnected through a LAN, and the route is reachable. On the DNS server, the DNS record of host.xxyyzz.com and 1.0.0.2 exists.
• Device access PC through dynamic resolution of host.xxyyzz.com through the DNS server.

Network Topology

Figure 4-2 Networking for Configure Dynamic Domain Name Resolution

Configuration Steps

Step 1: Create VLANs, and add ports to the required VLANs. (Omitted)

Step 2: Configure IP addresses for the ports. (Omitted)

Step 3: Configure the DNS server.(Omitted)

Step 4: Configure the DNS client.

#Specify a DNS server for the client, and the IP address is 1.0.0.3.

Step 5: Check the result.

#On Device, ping host host.xxyyzz.com. Device obtains the IP address 1.0.0.2 that corresponds to the host name through the DNS server.

Device#ping host.xxyyzz.com 
 
Press key (ctrl + shift + 6) interrupt it. 
Sending 5, 76-byte ICMP Echos to 1.0.0.2 , timeout is 2 seconds: 
!!!!! 
Success rate is 100% (5/5). Round-trip min/avg/max = 0/6/16 ms.