Issues with anycast and dns2 availability

NextDNS No change, same issue...

;; communications error to 127.0.0.1#53: timed out
;; communications error to 127.0.0.1#53: timed out
;; communications error to 127.0.0.1#53: timed out

; <<>> DiG 9.18.24 <<>> google.com
;; global options: +cmd
;; no servers could be reached

https://nextdns.io/diag/1a9a5950-86cf-11ef-b2eb-dd41169b4535

Both xxxx.dns2.nextdns.io and xxxxxx.dns.nextdns.io fail! Tried them separately and as fallback. Only dns1 is working.

NextDNS The issue is also present while testing from multiple separate endpoints in Dubai.

No issues with Cloudflare or other DoQ/DoT/H3 managed dns providers.

NextDNS Network Here you go:

root@edge:~# mtr --report-wide --show-ips 37.252.245.241
Start: 2024-10-12T09:21:48+0400
HOST: edge                                          Loss%   Snt   Last   Avg  Best  Wrst StDev
  1.|-- lan (10.20.30.1)                 0.0%    10    0.7   0.8   0.7   0.9   0.0
2.|-- bba-86-99-216-1.alshamil.net.ae (86.99.216.1) 0.0% 10 3.3 3.5 3.1 5.8 0.8
  3.|-- ???                                           100.0    10    0.0   0.0   0.0   0.0   0.0

root@edge:~# mtr --report-wide --show-ips 37.252.245.1

Start: 2024-10-12T09:22:24+0400
HOST: edge                                          Loss%   Snt   Last   Avg  Best  Wrst StDev
  1.|-- lan (10.20.30.1)                 0.0%    10    0.8   0.8   0.7   0.9   0.1
2.|-- bba-86-99-216-1.alshamil.net.ae (86.99.216.1) 0.0% 10 3.9 4.5 3.1 12.7 2.9
  3.|-- 10.246.255.125 (10.246.255.125)                0.0%    10    3.1   4.2   3.1   7.5   1.6
  4.|-- 195.229.4.106 (195.229.4.106)                  0.0%    10    5.2   5.3   4.8   5.8   0.3
  5.|-- 195.229.0.236 (195.229.0.236)                  0.0%    10    5.4   5.2   4.7   5.6   0.3
  6.|-- 185.1.15.54 (185.1.15.54)                      0.0%    10    8.1   8.5   8.0   8.9   0.4
7.|-- j48-2.dx1.dxb.ae.datamena.net (94.207.42.34) 0.0% 10 9.1 8.6 8.1 9.1 0.3
8.|-- oobfw1-dxb1-dx.uae-ix.net (94.207.34.34) 0.0% 10 8.5 8.8 8.5 9.3 0.3
  9.|-- ???                                           100.0    10    0.0   0.0   0.0   0.0   0.0

root@edge:~# mtr --report-wide --show-ips 37.252.245.20
Start: 2024-10-12T09:23:06+0400
HOST: edge                                          Loss%   Snt   Last   Avg  Best  Wrst StDev
  1.|-- lan (10.20.30.1)                 0.0%    10    0.8   0.8   0.7   1.0   0.1
2.|-- bba-86-99-216-1.alshamil.net.ae (86.99.216.1) 0.0% 10 3.9 5.2 3.3 12.3 3.2
  3.|-- 10.246.255.125 (10.246.255.125)                0.0%    10    3.1   3.5   3.1   4.9   0.5
  4.|-- 195.229.4.106 (195.229.4.106)                  0.0%    10    5.4   6.4   4.3  16.3   3.5
  5.|-- 195.229.0.236 (195.229.0.236)                  0.0%    10    5.4   5.5   5.0   6.0   0.3
  6.|-- 185.1.15.54 (185.1.15.54)                      0.0%    10    7.3   7.3   6.9   7.9   0.3
7.|-- j48-2.dx1.dxb.ae.datamena.net (94.207.42.34) 0.0% 10 7.3 7.6 7.1 9.7 0.8
8.|-- oobfw1-dxb1-dx.uae-ix.net (94.207.34.34) 0.0% 10 7.3 7.4 7.0 7.8 0.2
9.|-- anx-lg-ae-dxb01.anexia-it.com (37.252.245.20) 0.0% 10 7.7 7.7 7.4 8.1 0.2

I believe the issue is with dns2 node's IPv4 as I can ping its IPv6 advertised address. Additionally, xxxx.dns.nextdns.io is failing instead of properly steering to the only working node in dubai dns1 and including the next available nearest node ie. ruh

As stated previously, I have no issues with other managed dns providers .. some with nodes in Dubai so I know the issue isn't with my ISP or edge/endpoints.

I first noticed the issue about 2 weeks ago and thought it might be a temporary outage of some sort that would resolve on its own but it hasn't.

NextDNS Network  dns2's IPv6

root@edge:~# mtr --report-wide --show-ips 2a00:11c0:14:506::9
Start: 2024-10-12T09:58:49+0400
HOST: edge                                                                Loss%   Snt   Last   Avg  Best  Wrst StDev
  1.|-- 2001:8f8:1363:511::1 (2001:8f8:1363:511::1)                          0.0%    10    1.0   1.0   0.6   1.2   0.1
  2.|-- 2001:8f8:3:1000::29 (2001:8f8:3:1000::29)                            0.0%    10    3.9   4.4   2.6   9.3   2.0
  3.|-- 2001:8f8:3:1107::1 (2001:8f8:3:1107::1)                              0.0%    10    3.8   5.0   3.3  17.0   4.2
  4.|-- 2001:8f8:0:10:0:23:204:1 (2001:8f8:0:10:0:23:204:1)                  0.0%    10    5.7   5.4   4.6   6.0   0.4
  5.|-- 2001:8f8:0:11:0:22:3:6 (2001:8f8:0:11:0:22:3:6)                      0.0%    10    8.0   7.8   7.4   8.8   0.5
  6.|-- ???                                                                 100.0    10    0.0   0.0   0.0   0.0   0.0
7.|-- du-01.alb.dxb.ae.datamena.net (2a00:f28:2:202::1) 10.0% 10 82.4 82.4 81.7 83.0 0.4
8.|-- j48-3.dx1.dxb.ae.datamena.net (2a00:f28:2:202::2) 10.0% 10 82.1 82.1 81.9 82.4 0.1
  9.|-- 2a00:f2f:1:3904:0:ffff:5ecf:2a31 (2a00:f2f:1:3904:0:ffff:5ecf:2a31) 10.0%    10   81.4  81.5  81.0  84.1   1.0
 10.|-- 2a00:f2f:11ff:5::2 (2a00:f2f:11ff:5::2)                             10.0%    10   12.8  12.3  11.4  12.8   0.4
 11.|-- 2a00:11c0:14:2:: (2a00:11c0:14:2::)                                 10.0%    10   16.1  16.3  16.1  16.6   0.2
12.|-- dns.nextdns.io (2a00:11c0:14:506::9) 0.0% 10 12.0 12.2 11.9 12.8 0.3