1.1.1.1 not reachable on izzi - Mexico

Hello Community,

I’m currently having a problem reaching 1.1.1.1 through izzi (Cablemas Telecomunicaciones SA de CV) in Mexico. But the secondary 1.0.0.1 is reachable and working without a problem.

Country: Mexico (MX)

ISP: izzi (Cablemas Telecomunicaciones SA de CV)

Diagnostic results here

Debug information

traceroute 1.1.1.1

traceroute to 1.1.1.1 (1.1.1.1), 64 hops max, 52 byte packets
 1  172.16.0.1 (172.16.0.1)  5.156 ms  2.177 ms  2.106 ms
 2  * * *
 3  10.12.1.5 (10.12.1.5)  17.323 ms  14.163 ms  12.334 ms
 4  10.19.132.33 (10.19.132.33)  16.755 ms  14.453 ms  16.100 ms
 5  100.65.48.3 (100.65.48.3)  13.999 ms  14.476 ms  12.852 ms
 6  * * *
 7  * * *
 8  * * *
 9  * * *
10  * * *
11  * * *
12  * * *
13  * one.one.one.one (1.1.1.1)  21.122 ms *

traceroute 1.0.0.1

traceroute to 1.0.0.1 (1.0.0.1), 64 hops max, 52 byte packets
 1  172.16.0.1 (172.16.0.1)  5.338 ms  2.163 ms  2.850 ms
 2  * * *
 3  10.12.1.5 (10.12.1.5)  15.516 ms  14.326 ms  13.004 ms
 4  10.19.132.33 (10.19.132.33)  16.462 ms  19.243 ms  14.966 ms
 5  100.65.48.3 (100.65.48.3)  14.871 ms  14.580 ms  12.879 ms
 6  100.65.48.4 (100.65.48.4)  18.936 ms  22.678 ms  14.858 ms
 7  177.238.190.70.cable.dyn.cableonline.com.mx (177.238.190.70)  14.059 ms  15.645 ms  15.878 ms
 8  155.189-204-240.bestelclientes.com.mx (189.204.240.155)  40.544 ms  41.001 ms  39.880 ms
 9  59.189-204-203.bestelclientes.com.mx (189.204.203.59)  39.035 ms  42.905 ms  39.868 ms
10  69.189-204-203.bestelclientes.com.mx (189.204.203.69)  42.177 ms  41.756 ms  54.752 ms
11  ptx_mca--dfo_txp (201.148.33.217)  59.078 ms  60.261 ms
    ptx_mca--dfo_txp (189.202.244.114)  58.029 ms
12  206.71.142.10 (206.71.142.10)  63.197 ms  58.004 ms  85.986 ms
13  1.0.0.1 (1.0.0.1)  57.927 ms  59.203 ms  57.892 ms

dig +short CHAOS TXT id.server @1.1.1.1
;; connection timed out; no servers could be reached

dig +short CHAOS TXT id.server @1.0.0.1
"MFE"

dig +tcp @1.1.1.1 id.server CH TXT
;; Connection to 1.1.1.1#53(1.1.1.1) for id.server failed: connection refused.

dig +tcp @1.0.0.1 id.server CH TXT

; <<>> DiG 9.10.6 <<>> +tcp @1.0.0.1 id.server CH TXT
; (1 server found)
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 2470
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 0

;; QUESTION SECTION:
;id.server.			CH	TXT

;; ANSWER SECTION:
id.server.		0	CH	TXT	"MFE"

;; Query time: 60 msec
;; SERVER: 1.0.0.1#53(1.0.0.1)
;; WHEN: Fri Apr 03 01:43:54 CST 2020
;; MSG SIZE  rcvd: 52

openssl s_client -connect 1.1.1.1:853
connect: Connection refused
connect:errno=61

openssl s_client -connect 1.0.0.1:853
CONNECTED(00000003)
depth=1 C = US, O = DigiCert Inc, CN = DigiCert ECC Secure Server CA
verify error:num=20:unable to get local issuer certificate
verify return:0
---
Certificate chain
 0 s:/C=US/ST=California/L=San Francisco/O=Cloudflare, Inc./CN=cloudflare-dns.com
   i:/C=US/O=DigiCert Inc/CN=DigiCert ECC Secure Server CA
 1 s:/C=US/O=DigiCert Inc/CN=DigiCert ECC Secure Server CA
   i:/C=US/O=DigiCert Inc/OU=www.digicert.com/CN=DigiCert Global Root CA
---
Server certificate
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----
subject=/C=US/ST=California/L=San Francisco/O=Cloudflare, Inc./CN=cloudflare-dns.com
issuer=/C=US/O=DigiCert Inc/CN=DigiCert ECC Secure Server CA
---
No client certificate CA names sent
---
SSL handshake has read 2904 bytes and written 436 bytes
---
New, TLSv1/SSLv3, Cipher is ECDHE-ECDSA-CHACHA20-POLY1305
Server public key is 256 bit
Secure Renegotiation IS supported
Compression: NONE
Expansion: NONE
No ALPN negotiated
SSL-Session:
    Protocol  : TLSv1.2
    Cipher    : ECDHE-ECDSA-CHACHA20-POLY1305
    Session-ID: E4CCFDD45842FF7F1574257F75246A9F3668E3F6F0986D6D9B9ED2D091D9A04D
    Session-ID-ctx: 
    Master-Key: 381AEC1438E1BE9B62C5669BABB614840DCB60A4A2413BF88F09DB4D96C7BE1579E27A7532385D721247964706992E78
    TLS session ticket lifetime hint: 299 (seconds)
    TLS session ticket:
    0000 - b2 1a 1d 0d 6a 01 4b 9b-09 61 1f 6a 12 9a b2 2e   ....j.K..a.j....
    0010 - d8 22 19 38 40 9b 5f 5a-ff 80 f2 c8 3c 43 a2 f5   ."[email protected]_Z....<C..
    0020 - fe 77 cb 04 ae 56 b6 b7-2d 87 a4 d5 55 89 82 44   .w...V..-...U..D
    0030 - e9 17 10 20 d6 88 39 f8-16 a5 23 91 f3 b6 2d a5   ... ..9...#...-.
    0040 - 6e a8 d7 a8 b9 89 5f bf-69 44 98 2f 5d 78 ae 09   n....._.iD./]x..
    0050 - 42 5d 5d 36 1f 31 68 5f-b0 c4 c7 26 0a 76 f6 f5   B]]6.1h_...&.v..
    0060 - bf 1f a1 3f 75 f0 ed 7b-58 af 70 e0 9b 46 5d 0e   ...?u..{X.p..F].
    0070 - e7 33 37 9e f4 57 8a 34-fd 3e 29 df f6 73 32 93   .37..W.4.>)..s2.
    0080 - 05 af 5e 2b 32 c7 ee 29-96 d3 c6 5b c8 a0 f3 d7   ..^+2..)...[....
    0090 - f5 08 3c 1c 2c 00 ab 96-c1 95 be 2e cd 29 aa d0   ..<.,........)..
    00a0 - e0 10 b8 bb 00 bc 0d 29-d7 45 f7 14 24 f4 29 a5   .......).E..$.).

    Start Time: 1585899872
    Timeout   : 300 (sec)
    Verify return code: 0 (ok)
---