Configure Cisco device as DNS client

DNS is an application layer protocol that is used to resolve hostnames in IP addresses. If you have a DNS server on your network, you can configure your Cisco device to use it for name resolution. Here are the steps:

*(Optional) If you previously disabled DNS searches on your device, re-enable it using the ip domain-lookup command.

*Specify the DNS server IP address using the ip name-server command. Up to six DNS servers can be specified.

*(Optional) Specify the domain name to be added to the host name that you type using the ip domain-name command.



Here is an example of setup:

Floor1 (config) #ip servername 192.168.0.100

In the output above, you can see that I have specified the IP address of my DNS server (192.168.0.100). Let's say the DNS server contains a record of a server called File Sharing. I can try to ping this host using the hostname to verify the name resolution process is working:

Floor 1 # ping file share
Translate "File Sharing" ... domain server (192.168.0.100)
Write the escape sequence for frustration.
Send 5 100 bytes ICMP echoes to 192.168.0.110, timeout 2 seconds:
. !!!!
Pass rate of 80 percent (4/5), round trip minute / average / max = 0/0 / 1ms

As you can see from the above result, the hostname file share has been translated to IP address 192.168.0.110.
Configure Cisco device as DNS client Configure Cisco device as DNS client Reviewed by Sirf Tech on July 12, 2020 Rating: 5

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