Is my router acting as a DNS server?

Your Answer

How to Find Your Primary & Secondary DNS
By using our site, you acknowledge that you have read and understand our Cookie Policy , Privacy Policy , and our Terms of Service. Identifying your IP address, primary DNS and the address for your default router can help you troubleshoot problems with your network connection. Off-topic comments will be removed. You can use the tcpdump command to dump traffic on a network and view dns traffic. Open the "Settings" app and tap "Wi-Fi.

On a Windows PC

How to Find Your IP Address, Primary DNS & Default Router

All the devices on your network—PCs, smartphones, tablets, game consoles, smart speakers, TV streaming boxes, Wi-Fi enabled light bulbs, and anything else you can think of—acquire their DNS server setting from the router unless you go out of your way to change it on the device. If you change the DNS server on your router, every other device on your network will use it. Really, if you want to use a third-party DNS server on your devices, we recommend you just change it on your router.

The exact steps you need to take will vary depending on your router. Change this and the setting will affect your entire network. On Windows, you can change this option from the Control Panel. This option must be changed separately for each connection you want to change it for. Android allows you to change your DNS server, but not system-wide.

Each individual Wi-FI network you connect to has its own settings. Tap the green plus sign and type any DNS server addresses you want to use. You can enter both IPv4 and IPv6 addresses in this list. This is our example network, we'd like to enable the DNS Service so our workstations can properly resolve Internet domains but also local network names.

Next, we need to configure the router with a public name-server, this will force the router to perform recursive DNS lookups, in other words, for every request it receives from our workstations the router will try to find the answer by asking as many DNS servers it needs, and finally return with an answer:.

Next step is to configure your DNS server with the host names of your local network, this way when Alan's PC trys to ping or connect to Wayne, the router will successfully resolve its netbios name to the appropriate IP address:. If you now try to ping 'wayne' directly from your router's CLI prompt, you should receive an answer:. At this point, you can configure your workstations to use your router's IP address as the primary DNS server:. We've covered how a Cisco router can be used as a basic DNS server to enable network clients to perform DNS queries for the local network and Internet.

Future articles in DNS will cover more advanced configurations, including full domain resource records, DNS load balancing and more. If you have found the article useful, we would really appreciate you sharing it with others by using the provided services on the top left corner of this article.

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On Your Router

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