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Dash
(regular) Wed 30-Jul-25 12:12:40

Request: check duckduckgo.com name servers for me

[link to this post]

Can somebody on a Zen connection with IPv6 please check they can contact Duck Duck Go's name servers over IPv6 please?

Linux/WSL:
dig -6 duckduckgo.com @ns01.quack-dns.com

Windows:
nslookup duckduckgo.com 2607:f740:e049::1

I'm unable to contact the server, and the trace looks to be a problem inside Zen, but I wanted to validate that with some other users.

Text
1 23 4	- 2 13 ms 12 ms 9 ms lo0-0.bng1.ixn-lon.zen.net.uk [2a02:8010::153] 3 9 ms 8 ms 8 ms lag-3.p1.ixn-lon.zen.net.uk [2a02:8010:0:800::19] 4 * * * Request timed out.

If it does work, what router/setup are you on?

RichTea23
(regular) Wed 30-Jul-25 13:02:38

Re: Request: check duckduckgo.com name servers for me

[re: Dash] [link to this post]

Its not working for my Zen connection.
but to be fair, its also not working from elsewhere ether I tested from several locations around the world.

Various (Dial up) -> clara.net (Dial up) -> TELE2 (Microwave) -> ZeN (ADSL) -> ZeN (vDSL) -> ZeN (FTTP via CityFibre)
"Modem" GL^.iNet GL-MT6000

AndrewNi
(member) Wed 30-Jul-25 15:26:17

Re: Request: check duckduckgo.com name servers for me

[re: Dash] [link to this post]

Doesn't work for me.

Default Server: fritz.box
Address: (ipv6 addr)

> server 2607:f740:e049::1
Default Server: [2607:f740:e049::1]
Address: 2607:f740:e049::1

> duckduckgo.com
Server: [2607:f740:e049::1]
Address: 2607:f740:e049::1

DNS request timed out.
timeout was 2 seconds.
DNS request timed out.
timeout was 2 seconds.
^C

Dash
(regular) Thu 31-Jul-25 10:39:40

Re: Request: check duckduckgo.com name servers for me

[re: RichTea23] [link to this post]

Thanks, could I ask you to do me a favour and try pinging and tracing it too?

I think that there are two issues 1) DDG's name servers aren't responding on IPv6 (pretty sure they were the other week when I first noticed this, but I may be imagining things) and 2) Zen can't route to them.

I need to work out which issues to raise to which people!

I've got a server in Italy and Poland that can ping the server, but my Zen connection cannot and my traces get lost in the Zen network.

Edit: IPv6 queries seem to be working for my other locations, but still not on Zen:

Text

# dig -6 duckduckgo.com @ns01.quack-dns.com
 ; <<>> DiG 9.16.23-RH <<>> -6 duckduckgo.com @ns01.quack-dns.com
;; global options: +cmd;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 29758;; flags: qr aa rd; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 1
;; WARNING: recursion requested but not available 
;; OPT PSEUDOSECTION:; EDNS: version: 0, flags:; udp: 1232
;; QUESTION SECTION:;duckduckgo.com.                        IN      A
 ;; ANSWER SECTION:
duckduckgo.com.         200     IN      A       40.114.177.156 
;; Query time: 23 msec;; SERVER: 2607:f740:e049::1#53(2607:f740:e049::1)
;; WHEN: Thu Jul 31 10:41:11 BST 2025;; MSG SIZE  rcvd: 59

Edited by Dash (Thu 31-Jul-25 10:43:46)

DFScale
(experienced) Thu 31-Jul-25 13:31:33

Re: Request: check duckduckgo.com name servers for me

[re: Dash] [link to this post]

I wonder if this thread https://forums.thinkbroadband.com/unhappiness/t/4772... might be relevant?

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