1.1.1.2 and 1.0.0.2

Website, Application, Performance DNS & Network
1

I use CloudFlare’s Family DNS which avoids malware. Strangely enough, 1.1.1.2 seems not working - and for a long time. The backup server, 1.0.0.2, seems ok.

C:\Users\xxxxx>nslookup one.one.one.one 1.1.1.2
DNS request timed out.
** timeout was 2 seconds.**
Server: UnKnown
Address: 1.1.1.2

DNS request timed out.
** timeout was 2 seconds.**
DNS request timed out.
** timeout was 2 seconds.**
DNS request timed out.
** timeout was 2 seconds.**
DNS request timed out.
** timeout was 2 seconds.**
***** Request to UnKnown timed-out**

C:\Users\xxxxx>nslookup one.one.one.one 1.1.1.1
Server: one.one.one.one
Address: 1.1.1.1

Non-authoritative answer:
Name: one.one.one.one
Addresses: 2606:4700:4700::1111
** 2606:4700:4700::1001**
** 1.1.1.1**
** 1.0.0.1**

C:\Users\xxxxx>nslookup one.one.one.one 1.0.0.2
Server: UnKnown
Address: 1.0.0.2

Non-authoritative answer:
Name: one.one.one.one
Addresses: 2606:4700:4700::1001
** 2606:4700:4700::1111**
** 1.1.1.1**
** 1.0.0.1**

2

Do you think you could follow the Troubleshooting Unreachability or Routing Issues section of Have problems with 1.1.1.1? *Read Me First* (with the .2 or .3 IPs) ? I’m not gonna call it for sure, but it could be that your ISP or router misused the 1.1.1.x IP addresses and only whitelisted 1.1.1.1 when people complained. Also post which ISP you have and your country if possible.

3

Hi @Judge,

You have pinpointed it. Congratulations!

If I may, let me start backwards: I live in São Paulo, SP, Brazil and my ISP is Net Claro, home cable broadband (the service formerly known as Net Vírtua). When you see the tracert below please bear in mind that [*.]embratel.net.br belongs to the Claro group.

There is in fact something wrong with IPv4 route for 1.1.1.2. And only this address. All the other IPv4 1.1.1.x and their equivalent in IPv6 are ok.

I asked a friend of mine who uses another ISP here in São Paulo, TIM Live home fiber service, and 1.1.1.2 for him is ok.

Here are my tests for 1.1.1.2. Should you need any further info - or even extended results for the other addresses - please do not hesitate to ask me.

Microsoft Windows [Version 10.0.19041.985]
(c) Microsoft Corporation. All rights reserved.

C:\Users\xxxxx>ping 1.1.1.2

Pinging 1.1.1.2 with 32 bytes of data:
Request timed out.
Request timed out.
Request timed out.
Request timed out.

Ping statistics for 1.1.1.2:
Packets: Sent = 4, Received = 0, Lost = 4 (100% loss),

C:\Users\xxxxx>tracert 1.1.1.2

Tracing route to 1.1.1.2 over a maximum of 30 hops

1 [suppressed]
2 [suppressed]
3 [suppressed]
4 [suppressed]
5 20 ms 17 ms 12 ms embratel-H0-5-1-0-agg02.spoph.embratel.net.br [189.23.132.81]
6 36 ms 39 ms 37 ms ebt-H1-13-0-0-tcore01.spolp.embratel.net.br [200.230.131.31]
7 59 ms 28 ms 38 ms ebt-B11-tcore01.spoph.embratel.net.br [200.230.0.6]
8 24 ms 31 ms 28 ms ebt-B12-tcore01.spo.embratel.net.br [200.230.158.30]
9 30 ms 26 ms 27 ms ebt-b2111-tcore01.rjo.embratel.net.br [200.230.251.1]
10 36 ms 20 ms 34 ms ebt-H0-5-0-0-agg01.dqxtb.embratel.net.br [200.244.18.100]
11 34 ms * * ebt-t11-1-rta01.dqxtb.embratel.net.br [200.244.172.12]
12 * * * Request timed out.
13 * * * Request timed out.
14 * * * Request timed out.
15 * * * Request timed out.
16 * * * Request timed out.
17 * * * Request timed out.
18 * * * Request timed out.
19 * * * Request timed out.
20 * * * Request timed out.
21 * * * Request timed out.
22 * * * Request timed out.
23 * * * Request timed out.
24 * * * Request timed out.
25 * * * Request timed out.
26 * * * Request timed out.
27 * * * Request timed out.
28 * * * Request timed out.
29 * * * Request timed out.
30 * * * Request timed out.

Trace complete.

C:\Users\xxxxx>nslookup one.one.one.one 1.1.1.2
DNS request timed out.
timeout was 2 seconds.
Server: UnKnown
Address: 1.1.1.2

DNS request timed out.
timeout was 2 seconds.
DNS request timed out.
timeout was 2 seconds.
DNS request timed out.
timeout was 2 seconds.
DNS request timed out.
timeout was 2 seconds.
*** Request to UnKnown timed-out

C:\Users\xxxxx>nslookup -class=chaos -type=txt id.server 1.1.1.2
DNS request timed out.
timeout was 2 seconds.
Server: UnKnown
Address: 1.1.1.2

DNS request timed out.
timeout was 2 seconds.
DNS request timed out.
timeout was 2 seconds.
*** Request to UnKnown timed-out

C:\Users\xxxxx>nslookup -vc -class=chaos -type=txt id.server 1.1.1.2
Server: UnKnown
Address: 1.1.1.2

*** UnKnown can’t find id.server: Unspecified error

C:\Users\xxxxx>

4

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