Secondary DNS is not working

HugoDanielOlivera
4 wk ago
2replies

I use both ips on my router.

% dig @45.90.28.80

; <<>> DiG 9.10.6 <<>> @45.90.28.80

; (1 server found)

;; global options: +cmd

;; Got answer:

;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 7025

;; flags: qr rd ra ad; QUERY: 1, ANSWER: 13, AUTHORITY: 0, ADDITIONAL: 1

;; OPT PSEUDOSECTION:

; EDNS: version: 0, flags:; udp: 1232

;; QUESTION SECTION:

;. IN NS

;; ANSWER SECTION:

. 36565 IN NS b.root-servers.net.

. 36565 IN NS i.root-servers.net.

. 36565 IN NS d.root-servers.net.

. 36565 IN NS k.root-servers.net.

. 36565 IN NS l.root-servers.net.

. 36565 IN NS g.root-servers.net.

. 36565 IN NS j.root-servers.net.

. 36565 IN NS h.root-servers.net.

. 36565 IN NS c.root-servers.net.

. 36565 IN NS m.root-servers.net.

. 36565 IN NS a.root-servers.net.

. 36565 IN NS f.root-servers.net.

. 36565 IN NS e.root-servers.net.

;; Query time: 53 msec

;; SERVER: 45.90.28.80#53(45.90.28.80)

;; WHEN: Sun Jun 01 05:17:40 -03 2025

;; MSG SIZE rcvd: 239

hugodanieloliveraferreira@iMac ~ % dig @45.90.30.80

; <<>> DiG 9.10.6 <<>> @45.90.30.80

; (1 server found)

;; global options: +cmd

;; connection timed out; no servers could be reached

Is possible fix this.

Best!

- Failsafe
- 2 wk ago
- Reported - view
For reference, I get valid responses from both of those IPs:

root@OpenWrt:~# dig @45.90.28.80 +short k.root-servers.net. l.root-servers.net. m.root-servers.net. a.root-servers.net. b.root-servers.net. c.root-servers.net. d.root-servers.net. e.root-servers.net. f.root-servers.net. g.root-servers.net. h.root-servers.net. i.root-servers.net. j.root-servers.net. root@OpenWrt:~# dig @45.90.30.80 +short m.root-servers.net. a.root-servers.net. b.root-servers.net. c.root-servers.net. d.root-servers.net. e.root-servers.net. f.root-servers.net. g.root-servers.net. h.root-servers.net. i.root-servers.net. j.root-servers.net. k.root-servers.net. l.root-servers.net.

Have you tried to run a `traceroute` to each and see if there are any obvious issues in the routing?
- HugoDanielOlivera
  
  2 wk ago
  
  Reported - view
  Same error from my location in Buenos Aires.
  
  hugodanieloliveraferreira@iMac ~ % dig @45.90.28.80 +short
  
  j.root-servers.net.
  
  k.root-servers.net.
  
  l.root-servers.net.
  
  m.root-servers.net.
  
  a.root-servers.net.
  
  b.root-servers.net.
  
  c.root-servers.net.
  
  d.root-servers.net.
  
  e.root-servers.net.
  
  f.root-servers.net.
  
  g.root-servers.net.
  
  h.root-servers.net.
  
  i.root-servers.net.
  
  hugodanieloliveraferreira@iMac ~ % dig @45.90.30.80 +short
  
  ;; connection timed out; no servers could be reached
  
  hugodanieloliveraferreira@iMac ~ %
  
  Traceroute to ".30"
  
  hugodanieloliveraferreira@iMac ~ % traceroute 45.90.30.80
  
  traceroute to 45.90.30.80 (45.90.30.80), 64 hops max, 40 byte packets
  
  1 192.168.50.1 (192.168.50.1) 16.660 ms 3.133 ms 3.034 ms
  
  2 200.51.241.1 (200.51.241.1) 7.097 ms 6.453 ms 6.240 ms
  
  3 * * *
  
  4 * 213.140.39.118 (213.140.39.118) 6.597 ms
  
  213.140.39.116 (213.140.39.116) 5.602 ms
  
  5 * * *
  
  6 94.142.97.245 (94.142.97.245) 40.444 ms 35.203 ms
  
  94.142.97.204 (94.142.97.204) 37.736 ms
  
  7 ntt-ae5-0-grtsaotm3.net.telefonicaglobalsolutions.com (213.140.53.51) 33.821 ms 33.365 ms 34.032 ms
  
  8 xe-1-2-0-3.a00.saplbr02.br.ce.gin.ntt.net (200.15.0.86) 33.500 ms 39.680 ms *
  
  9 * * *
  
  10 * * *
  
  11 * * *
  
  12 * * *
  
  13 * * *
  
  14 * * *
  
  15 * * *
  
  16 * * *
  
  17 * * *
  
  18 * * *
  
  19 * * *
  
  20 * * *
  
  21 * * *
  
  22 * * *
  
  23 * * *
  
  24 * * *
  
  Using Apple profile on my Apple devices is working fine.
  
  On house router use anycast address on DoT configuration
  
  But ".30" is not working.
  
  Best

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Secondary DNS is not working

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