DNS over TLS (Cloudflare or NextDNS) - not working

Technical Support for Routers
1

hello, thanks,

factory reset AR750S-EXT with firmware 3.212.
cannot get dns over tls to work,

these are the settings, notice i am using nextdns
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but when i log into nextdns, i am told the router is using cloudflare???

rebooting does not help

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2
  1. check your Stubby(DoT process) configuration file under /etc/stubby/stubby.yml
  2. check your DHCP & DNS configuration to see if it’s pointing to Stubby’s listenin port (format: IP#port )
3

thanks,

cat /etc/stubby/stubby.yml
resolution_type: GETDNS_RESOLUTION_STUB

dns_transport_list:
  - GETDNS_TRANSPORT_TLS

tls_authentication: GETDNS_AUTHENTICATION_REQUIRED

tls_query_padding_blocksize: 128

edns_client_subnet_private : 0

round_robin_upstreams: 0

idle_timeout: 10000

listen_addresses:
  - 127.0.0.1@53535
  -  0::1@53535

upstream_recursive_servers:
  - address_data: 45.90.28.0
    tls_auth_name: "redacted.dns1.nextdns.io"
  - address_data: 2a07:a8c0::49:5faa
    tls_auth_name: "redacted.dns1.nextdns.io"
  - address_data: 45.90.30.0
    tls_auth_name: "redacted.dns2.nextdns.io"
  - address_data: 2a07:a8c1::49:5faa
    tls_auth_name: "redacted.dns2.nextdns.io"
  1. i am using the factory default settings, looks ok to me. do you see any issues?
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4

The configuration file looks normal and correct.
Maybe you can try other DNS checking website to double check if the result is still Cloudflare’s.
If NextDNS’s linked IP/DDNS matched your current IP address?
Did you test DNS configuration on iPhone and have “Hide IP address” option turned on? (Apple utilize CloudFlare’s server to do a layer of proxy)?

NextDNS: https://test.nextdns.io
BrowserLeak: DNS Leak Test - BrowserLeaks

Any upper layer network (ISP or firewall something) has forced DNS redirection or something?

5

3.212 should not have such bugs.

Maybe check if your laptop use 1.1.1.1?

6

sorry to all, i made a super simple stupid mistake.

thanks much,
david