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Bug #3294

open

drill(1) with IPv6 NS fails with UDP but works with TCP

Added by liweitianux about 1 month ago.

Status:
New
Priority:
Normal
Assignee:
-
Category:
-
Target version:
Start date:
08/13/2021
Due date:
% Done:

0%

Estimated time:

Description

YONETANI Tomokazu reported this issue on users@ mailing list: https://lists.dragonflybsd.org/pipermail/users/2021-August/404805.html

$ drill  @2001:4860:4860::8888 aaaa leaf.dragonflybsd.org | egrep -v
'^(\;|$)'
Error: error sending query: Could not send or receive, because of network
error

unless using TCP query:

$ drill -t @2001:4860:4860::8888 aaaa leaf.dragonflybsd.org | egrep -v
'^(\;|$)'
leaf.dragonflybsd.org. 3599 IN AAAA 2001:470:1:43b:1::68

Similar DNS queries on other boxes running different OSes don't have the same problem, and tcpdump output shows the response from the DNS server, so I doubt it's an network issue.

$ uname -a
DragonFly c60 6.0-RELEASE DragonFly v6.0.0.33.gc7b638-RELEASE #0: Wed Aug 4
20:25:25 JST 2021 root at c60:/usr/obj/build/usr/src/sys/X86_64_GENERIC x86_64

I also confirmed this issue on leaf, which running master as of Aug 4.

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