Archer AX50 seems to ignore custom DNS server settings

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Archer AX50 seems to ignore custom DNS server settings

This thread has been locked for further replies. You can start a new thread to share your ideas or ask questions.
Archer AX50 seems to ignore custom DNS server settings
Archer AX50 seems to ignore custom DNS server settings
2021-01-03 22:00:34
Model: Archer AX50  
Hardware Version: V1
Firmware Version: 1.0.9 Build 20200708 rel.55037(5553)

Hello,

 

I am having trouble with the DNS setting in the DHCP Server settings page. I have configured it as indicated in the image below. But name server requests don't seem to be going to the address I specify. They seem to be going straight to an external DNS server and ignoring mine local DNS server. Could it be related to the fact that I'm using PPPoE to connect to the internet? I'm baffled by this behaviour.

 

Note that I have confirmed the DNS server is up and running at ip 192.168.0.2. At that address I have a raspberry pi running dnsmasq with it configured to redirect a specific external domain to an internal IP address. When I run the following command: 

$ dig @192.168.0.2 specific.external.domain.com

..I get the correct internal IP address.

However if I run this command:

$ dig @192.168.0.1 specific.external.domain.com

I get the external IP address.

 

I have also tried deleting the Primary and Secondary DNS IPs expecting it to fail to resolve any domains, however it does indeed still resolve domains somehow. How is that possible?

 

 

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#1
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4 Reply
Re:Archer AX50 seems to ignore custom DNS server settings
2021-01-04 11:54:35

@Darshan 

 

Your AX50 gets DNS info from your ISP by default.

to change that try :

 

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#2
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Re:Archer AX50 seems to ignore custom DNS server settings
2021-01-05 00:27:41 - last edited 2021-01-05 00:28:09

@Ivaylo 

Thanks Ivaylo, but my dns router server is on the same subnet, which it doesn't allow. Odd that it just ignores the DHCP configuration without warning. Am I just out of luck?

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#3
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Re:Archer AX50 seems to ignore custom DNS server settings
2021-01-05 01:16:59 - last edited 2021-01-05 04:20:09

@Darshan 

 

Yeah, it won't let you use a local address - I misinterpreted your intention.

 

These settings are for the local network clients receiving their IP setting over the DHCP protocol.

If you received you IP settings via DHCP did you check in network properties which DNS has been assigned to the client ? (192.168.0.2 or other)

When you delete optional parameters (Pri & Sec DNS), it will default to 192.168.0.1 (your router local IP address - DNS received from your ISP) - hence normal behavior (it continues to resolve addresses with the ISP DNS).

When you set your computer with a static IP address and DNS server (192.168.0.2) does that work properly ?

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#4
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Re:Archer AX50 seems to ignore custom DNS server settings
2021-01-05 06:08:04

@Darshan 

 

Try to reboot the AX50 and the device connected to it, it seems the DHCP address has not released yet.

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