1.1.1.1 not reachable by Tiscali in Rome, Italy. 1.0.0.1 works

Hi there
Here in Roma, since this afternoon, it is impossible to reach the 1.1.1.1 DNS, but 1.0.0.1 works flawlessly.
I’m not the only one experiencing this issue, also a friend of mine in another area of the city.

Here you can see my results:

Traccia instradamento verso 1dot1dot1dot1.Cloudflare-dns.com [1.1.1.1]
su un massimo di 30 punti di passaggio:

  1    <1 ms    <1 ms    <1 ms  TGMEDIAACCESS [192.168.1.1]
  2    79 ms    95 ms    97 ms  static-213-205-52-134.clienti.tiscali.it [213.205.52.134]
  3   116 ms    90 ms    87 ms  static-213-205-55-205.clienti.tiscali.it [213.205.55.205]
  4     8 ms     9 ms     8 ms  static-213-205-55-169.clienti.tiscali.it [213.205.55.169]
  5    98 ms   100 ms    96 ms  static-213-205-55-125.clienti.tiscali.it [213.205.55.125]
  6   196 ms   152 ms    83 ms  static-94-32-126-29.clienti.tiscali.it [94.32.126.29]
  7    10 ms    13 ms    11 ms  static-94-32-126-18.clienti.tiscali.it [94.32.126.18]
  8    38 ms    48 ms    26 ms  1dot1dot1dot1.Cloudflare-dns.com [1.1.1.1]

Traccia instradamento verso 1dot1dot1dot1.Cloudflare-dns.com [1.0.0.1]
su un massimo di 30 punti di passaggio:

  1    <1 ms    <1 ms    <1 ms  TGMEDIAACCESS [192.168.1.1]
  2    77 ms    80 ms    82 ms  static-213-205-52-134.clienti.tiscali.it [213.205.52.134]
  3   201 ms   178 ms    87 ms  static-213-205-55-197.clienti.tiscali.it [213.205.55.197]
  4     9 ms    11 ms     8 ms  static-213-205-55-165.clienti.tiscali.it [213.205.55.165]
  5   114 ms   115 ms   103 ms  static-213-205-55-125.clienti.tiscali.it [213.205.55.125]
  6   141 ms   136 ms   124 ms  static-94-32-126-29.clienti.tiscali.it [94.32.126.29]
  7    64 ms    67 ms    75 ms  static-94-32-126-18.clienti.tiscali.it [94.32.126.18]
  8     9 ms    10 ms     9 ms  Cloudflare-nap.namex.it [193.201.28.33]
  9    81 ms    94 ms    97 ms  1dot1dot1dot1.Cloudflare-dns.com [1.0.0.1]

C:\Users\andre>nslookup -class=chaos -type=txt id.server 1.1.1.1
DNS request timed out.
    timeout was 2 seconds.
Server:  UnKnown
Address:  1.1.1.1

DNS request timed out.
    timeout was 2 seconds.
DNS request timed out.
    timeout was 2 seconds.
*** Tempo scaduto per la richiesta a UnKnown

C:\Users\andre>nslookup -class=chaos -type=txt id.server 1.0.0.1
Server:  1dot1dot1dot1.Cloudflare-dns.com
Address:  1.0.0.1

Risposta da un server non autorevole:
id.server       text =

        "fco01"

C:\Users\andre>nslookup -vc -class=chaos -type=txt id.server 1.1.1.1
Server:  UnKnown
Address:  1.1.1.1

*** UnKnown non è in grado di trovare id.server: Unspecified error

C:\Users\andre>nslookup -vc -class=chaos -type=txt id.server 1.0.0.1
Server:  1dot1dot1dot1.Cloudflare-dns.com
Address:  1.0.0.1

Risposta da un server non autorevole:
id.server       text =

        "fco01"

@matteo
Thank you very much

It seems to be a problem with routing towards 1.1.1.1, it fails at the last hop.

I will take a look as soon as I can and check from my connection in Turin.

Maybe @ryan or @cs-cf can take a look on the meantime!

Also I have the same problem. Rome but with Vodafone as a provider. This morning (26th of July) it was working and unlike what Andrea experienced it was working also yesterday.

Would you mind opening 1.1.1.1 — the Internet’s Fastest, Privacy-First DNS Resolver as well as doing the ping, traceroutes and digs @andreagdipaolo did?

Her you are Matteo:

Connection Information

root@XXX:~# traceroute 1.1.1.1
traceroute to 1.1.1.1 (1.1.1.1), 30 hops max, 60 byte packets
1 gateway.casa.lan (192.168.10.1) 0.458 ms 0.477 ms 0.454 ms
2 192.168.1.1 (192.168.1.1) 2.903 ms 3.551 ms 3.447 ms
3 net-37-119-78-1.cust.vodafonedsl.it (37.119.78.1) 12.936 ms 12.873 ms 12.736 ms
4 * * *
5 188.152.249.38 (188.152.249.38) 118.749 ms 118.490 ms 118.458 ms
6 * * *
7 * * *
8 * * *
9 * * *
10 * * *
11 * * *
12 * * *
13 * * *
14 * * *
15 * * *
16 * * *
17 * * *
18 * * *
19 * * *
20 * * *
21 * * *
22 * * *
23 * * *
24 * * *
25 * * *
26 * * *
27 * * *
28 * * *
29 * * *
30 * * *
root@XXX:~# traceroute 1.0.0.1
traceroute to 1.0.0.1 (1.0.0.1), 30 hops max, 60 byte packets
1 gateway.casa.lan (192.168.10.1) 0.426 ms 0.421 ms 0.498 ms
2 192.168.1.1 (192.168.1.1) 3.076 ms 2.955 ms 2.835 ms
3 net-37-119-78-1.cust.vodafonedsl.it (37.119.78.1) 8.033 ms 9.734 ms 9.603 ms
4 83.224.40.134 (83.224.40.134) 12.089 ms 12.002 ms 11.855 ms
5 83.224.40.133 (83.224.40.133) 11.703 ms 11.544 ms 11.381 ms
6 Cloudflare-nap.namex.it (193.201.28.33) 11.180 ms 6.762 ms 7.089 ms
7 1dot1dot1dot1.Cloudflare-dns.com (1.0.0.1) 7.033 ms 6.937 ms 7.930 ms

root@XXX:~# nslookup -class=chaos -type=txt id.server 1.1.1.1
;; connection timed out; no servers could be reached

root@XXX:~# nslookup -class=chaos -type=txt id.server 1.0.0.1
Server: 1.0.0.1
Address: 1.0.0.1#53

Non-authoritative answer:
id.server text = “fco01”

Authoritative answers can be found from:

root@XXX:~# nslookup -vc -class=chaos -type=txt id.server 1.1.1.1
;; connection timed out; no servers could be reached

root@XXX:~# nslookup -vc -class=chaos -type=txt id.server 1.0.0.1
Server: 1.0.0.1
Address: 1.0.0.1#53

Non-authoritative answer:
id.server text = “fco01”

Authoritative answers can be found from: