Re: lib/52382: Sockets that only listen on inet6 domain

[Christos Zoulas <christos%zoulas.com@localhost>]

you need separate socket file descriptors to listen to v4 and v6 and the application is responsible for setting those up. if you ktrace or turn on debugging perhaps you'll see what's wrong.

christos

> On Jul 9, 2017, at 6:15 PM, BERTRAND Joël <joel.bertrand%systella.fr@localhost> wrote:
> 
> The following reply was made to PR lib/52382; it has been noted by GNATS.
> 
> From: =?UTF-8?Q?BERTRAND_Jo=c3=abl?= <joel.bertrand%systella.fr@localhost>
> To: gnats-bugs%NetBSD.org@localhost, lib-bug-people%netbsd.org@localhost, gnats-admin%netbsd.org@localhost,
>        netbsd-bugs%netbsd.org@localhost
> Cc: 
> Subject: Re: lib/52382: Sockets that only listen on inet6 domain
> Date: Mon, 10 Jul 2017 00:12:09 +0200
> 
> Robert Elz a écrit :
>> The following reply was made to PR lib/52382; it has been noted by GNATS.
>> 
>> From: Robert Elz <kre%munnari.OZ.AU@localhost>
>> To: Joerg Sonnenberger <joerg%bec.de@localhost>
>> Cc: gnats-bugs%NetBSD.org@localhost, lib-bug-people%netbsd.org@localhost, gnats-admin%netbsd.org@localhost,
>>        netbsd-bugs%netbsd.org@localhost, joel.bertrand%systella.fr@localhost
>> Subject: Re: lib/52382: Sockets that only listen on inet6 domain
>> Date: Mon, 10 Jul 2017 00:36:40 +0700
>> 
>>     Date:        Sun, 9 Jul 2017 19:10:35 +0200
>>     From:        Joerg Sonnenberger <joerg=40bec.de>
>>     Message-ID:  <20170709171035.GA1214=40britannica.bec.de>
>> 
>>   =7C A program that really wants to use the same socket for both *must*
>>   =7C set ipv6only to 0 via the appropiate setsockopt call.
>> 
>> Either that or:
>>    sysctl -w net.inet6.ip6.v6only=3D0
>> 
>> which it is possible that Joel has in NetBSD 7 but not in NetBSD 6
>> 
>> But Joerg is correct, this has never been the NetBSD default.
>> 
>> kre
>> 
> 
> I have net.inet6.ip6.v6only = 1 in my system. But I'm sure that I have 
> not manually set this parameter.
> 
> That being said, both squid ans mysql worked fine with -6, -7 and don't 
> with -8 with default configuration.
> 
> I don't know if with -6 and -7 these daemons listen on both IPv4 and 
> IPv6, but they listen at least on IPv4.
> 
> Regards,
> 
> JB
>